Bugmasters/Projects

Here are some ongoing Bugmaster projects to help manage Mozilla bugs. Each one will have bug days or events, to help its contributors work together. "Triaging" a bug can mean a lot of different things depending on context. In general, it means adding more information to a filed bug.

1. Sign up for a Bugzilla account.
2. Make a Mozillians account and tag yourself "bugmasters" and "triage".
3. Join the irc channel and the bugmasters mailing list. Introduce yourself on the list!
4. Try the bug triage tutorial. 5. You might want to install the BugzillaJS add-on.

At first, you will only be able to comment on bugs. After you have added information to several bugs, let us know in the #bugmasters irc channel, and we can give you the ability to confirm and then edit bug reports.

Middle-aged bugs

This is a project to work on Firefox bugs reported in a range time of -6months(-180d) to -1months(-30d).

These are bugs that haven't been changed recently, but were reported within the last 6 months. Triaging them may find good, relevant bugs. It can also help clear out invalid bugs!

Middle Aged Untriaged Firefox Bugs, UNCONFIRMED.

Full Query

ID	Summary	Status	Whiteboard
316557	Firefox could have a permanent cached site list	UNCONFIRMED	[wontfix?]
320925	"Clear private data" (sanitize) feature should have an option to clear the last used download target directory name and path	UNCONFIRMED
360482	provide a user choice/override mechanism for audio objects with autostart="true"	UNCONFIRMED
411669	Selecting multiple items breaks when accessibility setting "sticky keys" is activated	UNCONFIRMED
433730	ajust interface when OS is configured with big font (more than 16pt)	UNCONFIRMED	[testday-20120615][wontfix for the pref window?]
465296	Proxy preference to bypass proxy for local addresses	UNCONFIRMED
481909	add maximum expire time to option Keep cookies until they expire	UNCONFIRMED
494882	When working with multiple FireFox profiles, no indication to user as to which windows are with which profile	UNCONFIRMED
526219	Add a folder search field on "Add/Edit bookmark" panel	UNCONFIRMED
540419	Switching between tabs makes youtube video go back and forth	UNCONFIRMED	[platform-rel-Youtube]
553513	[WISHLIST] use sans-serif as the default font	UNCONFIRMED
567172	Provide an option in FF's UI for site spcific zoom (browser.zoom.siteSpecific = true/false)	UNCONFIRMED
568418	Autoscroll option not saved when accessing same profile from different OS's	UNCONFIRMED
568794	"Allow pages to choose their own fonts" should be a per-site preference.	UNCONFIRMED
577447	Favicon from last visited page remains active for new visited page with no favicon associated in windows taskbar	UNCONFIRMED
626010	Add a "bookmark these tabs" option in sessionrestore error page	UNCONFIRMED	[WONTFIX?][addon idea]
647147	Add access to download settings from the Downloads window	UNCONFIRMED
673939	Scrolling via spacebar sometimes doesn't happen until next mouse movement event	UNCONFIRMED
677435	hardware acceleration on nvidia Geforce 460M w/ driver 267.54 very laggy	UNCONFIRMED
683136	Changing name in Save as dialog switches automatically filter	UNCONFIRMED
703074	Start using another profile than default, for specific file type/protocol	UNCONFIRMED
704796	menubar item selected after POST-Request	UNCONFIRMED	[closeme 2026-01-05]
706792	Firefox "remembers" scrollbar position of non-"Things that scroll natively" elements after page refresh	UNCONFIRMED
788428	ARIA alertdialog role does not fire system alert event when its visibility changes from hidden to visible	UNCONFIRMED
941279	Redirect blocking is useless without redirect info	UNCONFIRMED
945039	Blocks of text turns black in Windows 8.1 on any site and must scroll to recover text.	UNCONFIRMED
949322	Download Manager Tweak add-on empty even when there are files being downloaded.	UNCONFIRMED
1141487	Permit a way to add separators between tabs so that unpinned tabs can be grouped together	UNCONFIRMED
1239323	ctrl+w sometimes closes browser	UNCONFIRMED
1263419	I am able to access the Office365 student email of the last account that was signed in without entering login credentials.	UNCONFIRMED
1268058	firefox 45.0 on Linux Mint, in saved logins, right clicking & selecting to copy username, copies the passwords & vice versa	UNCONFIRMED
1302284	List site-specific zoom levels	UNCONFIRMED
1335963	Accel keys in Page Info Media panel are both "A" for "Save As" and "Select All"	UNCONFIRMED
1406088	browser.newtabpage.rows (manually config reset at each restart)	UNCONFIRMED
1407238	Cli argument for print page or generate pdf command in Firefox headless mode	UNCONFIRMED
1413874	Add mouse gestures natively	UNCONFIRMED
1419649	When I close one of several tabs, after the tab closes, the wrong existing tab is opened as the current tab	UNCONFIRMED
1424761	When a youtube.com tab is restored using Ctrl+Shift+T video should start were it was instead of from the beginning	UNCONFIRMED
1426103	Initial bookmarks sync is very slow, takes hours or never ends (for ~35000 bookmarks)	UNCONFIRMED
1435184	Extend "Density" Customize option to also adjust size of sidebar header	UNCONFIRMED
1453229	headless option to save URL page source	UNCONFIRMED
1471311	Add a way to open external links in a private browsing window	UNCONFIRMED
1477504	Reword "Open Link in New Private Window" to "Open Link in Private Window" and open the link in the existing private window, if there is one	UNCONFIRMED
1477587	Add a keyboard shortcut for deleting cookies and site data	UNCONFIRMED
1497038	Pinned top sites on home page should be synced as bookmarks	UNCONFIRMED
1504591	Resize full screen get black skin border bug.	UNCONFIRMED
1572902	Disqus escapes the Private Browsing mode	UNCONFIRMED
1587983	Make it clear what the check marks do in the one-click search engines preferences	UNCONFIRMED
1592660	After moving tabs to new window, ctrl-w closes all tabs in that window.	UNCONFIRMED
1593883	Allow content to handle Accel+N and Accel+T in Full Screen mode	UNCONFIRMED
1610523	Cannot easily reattempt navigating to a URL that returned status 204 No Content using reload button (and URL is not remembered in session restore)	UNCONFIRMED
1615841	Multi Tab session saves w/ Mozilla Account.	UNCONFIRMED
1648714	Basic Authentication Info shown in tab title	UNCONFIRMED
1670270	Improve fullpage screenshots when custom or multiple scrollbars exist	UNCONFIRMED
1674252	Don't hide pref browser.pagethumbnails.capturing_disabled	UNCONFIRMED
1674663	Problem in take screenshot when selecting a custom region	UNCONFIRMED
1676604	Primary password dialog blocks all(?) network traffic and page loads	UNCONFIRMED
1683221	Tab-bar Scrolling too fast	UNCONFIRMED
1685013	mute whole firefox audio in all tabs	UNCONFIRMED
1687031	ui changing addons look buggy if a tab is inactive for long time	UNCONFIRMED
1687173	browser.tabs.unloadOnLowMemory = true still gets Firefox killed by earlyoom	UNCONFIRMED
1716188	Setting browser.urlbar.maxRichResults to 0 introduces a delay when searching	UNCONFIRMED	qa-not-actionable
1786208	Dragging a URL link to the desktop does not display website icon	UNCONFIRMED
1809074	[Linux] .url file repeatedly opens new tabs when opened with Firefox	UNCONFIRMED
1827232	[meta] Ascertain whether a new GUI toolkit is needed for Firefox due to GTK4 abstraction and potential GTK5+ lack of X support.	UNCONFIRMED
1841430	Firefox & Nightly : Session restoration flaw ?	UNCONFIRMED
1848892	Does not restore Firefox window to correct virtual desktop anymore	UNCONFIRMED
1869924	Translation does not work, repeats single words in the target language	UNCONFIRMED
1897579	Serious usability issue: button inside another button	UNCONFIRMED
1904232	All tabs lost when using private browsing window and close main window	UNCONFIRMED
1907771	Certain websites are not translated despite language tag	UNCONFIRMED
1909597	Privacy & Security - Cookies and Site Data - Exceptions could remember sort by column	UNCONFIRMED
1910239	Separately group actual and aliased fonts.	UNCONFIRMED
1915803	[Wayland] Touchpad pinch gestures sometimes don't trigger zooming in PDF documents	UNCONFIRMED
1929141	"Thought-provoking stories" periodically reappears in my Home page	UNCONFIRMED	[qa-not-actionable]
1933839	[HiRes scroll] Tab-bar scrolling multiple tabs per click	UNCONFIRMED
1945395	Opening an .opml file enters infinite loop of opening tabs	UNCONFIRMED	[qa-not-actionable]
1949109	Shortcuts on the start page are not displayed correctly	UNCONFIRMED
1949916	When dragging a tab to second monitor, it does not pop up in front.	UNCONFIRMED
1956157	Unable to configure Firefox on Mac with provisioning profile	UNCONFIRMED
1960039	Firefox Home shortcuts' favicons don't update	UNCONFIRMED
1961891	New tab should stick to the same desktop	UNCONFIRMED
1962134	Context menu "Translate selection to" option shows wrong language	UNCONFIRMED
1964056	Changing system language from en-US to en-GB causes language settings to break	UNCONFIRMED
1966191	All of bookmarks toolbar ends up in the dropdown	UNCONFIRMED	[snt-scrubbed] [places-papercut]
1966999	Firefox blocks me from accessing most site I use (Spotify, Google Docs, Netflix, etc)	UNCONFIRMED
1970993	Menu key behaviour differs from right-click for spell checking	UNCONFIRMED
1971691	display new version available is broken	UNCONFIRMED
1971889	SessionStore doesn't seem to initialize properly on first launch when MOZ_DATA_REPORTING is false/not defined	UNCONFIRMED
1972506	Misalignment of the select selector drop-down menu bar in Firefox browser in RISCV architecture	UNCONFIRMED
1972732	Setting → Contrast Control — assigning custom colours to links changes colours throughout	UNCONFIRMED
1973457	Cannot Disable Smooth Scrolling When Searching Pdfs Within Firefox	UNCONFIRMED
1973462	Private browsing data in parent process not released quickly under some circumstances	UNCONFIRMED
1974027	Installing Firefox sometimes does not have a Chinese translation language pack	UNCONFIRMED
1974461	Moving tabs (along tab horizontal space for tabs) is not smooth anymore	UNCONFIRMED
1976475	The highlight pdf modal opened and was visible in every tab but I was unable to close or dismiss it.	UNCONFIRMED
1976660	Moving a tab to a new window on Linux Mint 22 results in the window disappearing completely and is never accessible but still active.	UNCONFIRMED
1977525	Highlighting multiple lines causes highlight to extend a page width to the right of the page in focus	UNCONFIRMED
1978084	Firefox keep loosing my data - deleted pins and open tabs	UNCONFIRMED	[fidefe-session-restore]
1978691	Help menu is longer than necessary	UNCONFIRMED
1979559	Cmd + Shift + T doesn't reopen tabs from re-opened window	UNCONFIRMED
1979767	When using Extended Pins in Firefox, several pinned site icons fail to load on startup, consistently appearing as blank tiles instead of showing their respective icons.	UNCONFIRMED
1979907	Firefox Nightly logs out of Firefox account on every restart	UNCONFIRMED
1980835	New-in-nightly tab title/site/metadata popup whips outside the window when tab list is scrolled	UNCONFIRMED	[fidefe-tabgrps]
1980922	Translate language recognition error on pdf viewer	UNCONFIRMED
1981061	Shortcuts with custom image icons showing up as grey. Only when the homepage is reloaded or a new homepage opened do they show up.	UNCONFIRMED
1981076	Pinned tabs disappear or are not restored after restart on Windows 11 with Firefox 141.	UNCONFIRMED
1981977	pdf viewer can not sav an crashes	UNCONFIRMED
1982206	Bookmark entry show up in address bar as a bookmark even after deleted.	UNCONFIRMED	[sng]
1982558	Pop-ups are blocked even though it is on the list of allowed websites with pop-ups	UNCONFIRMED
1982698	github.com - bad Contrast Control results with GitHub's colorblind theme	UNCONFIRMED
1984807	Animated new tab wallpaper results in memory leak when Firefox is minimized	UNCONFIRMED
1985447	Lock tab size when collapsing a group	UNCONFIRMED
1986160	"Never forget a password again" card in about:protections shows no Firefox logo	UNCONFIRMED
1986699	Tab closes when adding it to an existing group.	UNCONFIRMED	[fidefe-tabgrps]
1986982	PDF Viewer: Tab focus skips toolbar elements, moving directly from Close button to PDF content (WCAG 2.4.3 Focus Order)	UNCONFIRMED
1987261	Leftmost tab is automatically pinned after ~1 hour of inactivity	UNCONFIRMED
1987445	favicons are not loaded in background in case they are missing	UNCONFIRMED
1987534	open pdf automatically after downloaded	UNCONFIRMED
1988416	user_pref('dom.allow_scripts_to_close_windows', true) doesn't work to close headless instance from with script	UNCONFIRMED
1988443	"Restore tabs" page indicates Alt+R access key, doesn't work	UNCONFIRMED
1989063	account toolbar icon shows duplicate account with duplicate open tabs	UNCONFIRMED
1989238	when unloading multiple tabs, the tab you are currently on also gets unloaded and one of the tabs that you want unloaded doesn't get unloaded as a result	UNCONFIRMED
1989717	"Restore Previous Session" causes Firefox to hang	UNCONFIRMED
1989976	Tab group doorhanger not attached to anything (with vertical tabs on the right)	UNCONFIRMED
1990306	Botón de cerrar pestaña no funciona cuando solo queda una pestaña abierta	UNCONFIRMED
1991327	firefox background gif maxing out ram while idle in the background	UNCONFIRMED
1992175	There is no sessionstore file being saved and thus my latest tabs and tab groups are lost	UNCONFIRMED
1992287	Version 143.0.3 (64-bit) -- Restore Previous Tabs Not Working.	UNCONFIRMED
1992435	Sync is stuck in "Synchronising..." - it's singed in but claims that the login failed	UNCONFIRMED
1992525	PDFs can not be viewed/saved (ZoneAlarm deletes/moves downloaded files)	UNCONFIRMED
1992648	Private mode is retaining history even after closing it and opening a new window.	UNCONFIRMED
1993804	Toolbar and tab strip crashing when moving tabs	UNCONFIRMED
1993845	Firefox doesn't show image preview if user click any where out of Firefox window	UNCONFIRMED
1994089	When the vertical tab bar is narrow, pinned tabs under a tab being dragged become invisible	UNCONFIRMED
1994467	Context menu fails to appear when right-clicking on certain web elements.	UNCONFIRMED
1994611	"The download cannot be saved" error when right-clicking images or links	UNCONFIRMED
1995416	Firefox is freezing due to website notifications (w11, all forks)	UNCONFIRMED
1995961	The open & save dialog boxes don't honor dark mode with macOS	UNCONFIRMED
1996138	FF 144.0 Snap for Ubuntu does not restore previous session when opening.	UNCONFIRMED
1996353	Tabs overlap and the top bar is unresponsive after switching/moving tabs.	UNCONFIRMED
1996384	opening a private window first restores all last-used tabs/pages in a regular window	UNCONFIRMED
1996392	Saved tab group looses tabs except first one.	UNCONFIRMED
1996413	Selecting text on a long webpage and then moving the mouse down causes the scroll to jump upwards	UNCONFIRMED
1996516	Incorrect icons on tiles in Start Menu for PWAs	UNCONFIRMED
1996709	Open browser tabs keep freeing up or crashing.	UNCONFIRMED
1997326	Quick tab switch using ctrl-tab should ignore mouse cursor position until it moves	UNCONFIRMED
1997551	Inconsistent scrolling speed in vertical tabs sidebar	UNCONFIRMED
1998510	SearchEngines Remove policy not working for Perplexity	UNCONFIRMED
1999047	the --private-window command line parameter does not work when an empty string is supplied	UNCONFIRMED
1999475	URL bar fails to navigate when pasted string contains BiDi/zero-width control characters (e.g., U+2066/U+2069) — treated as search or “Hmm. That address doesn’t look right.”	UNCONFIRMED	[sng]
1999499	AI Tab grouping does not suggest group tabs with similar content from the same website	UNCONFIRMED	[genai]
1999569	FF "manage accounts" menu and any others in top right toolbar overlap and block even system UX in MacOS	UNCONFIRMED
1999612	add option "Open new tabs next to your active tab"	UNCONFIRMED
1999688	Open previous windows and tabs Not working stopped working	UNCONFIRMED
1999698	Password alerts have no username	UNCONFIRMED
1999742	Right-click menu not displaying all options	UNCONFIRMED
1999866	About downloading offline translation packs	UNCONFIRMED
2001422	Starting a video in the last tab hides part of the tab	UNCONFIRMED
2001541	inconsistent windows Menu display in Firefox 115.30.0esr	UNCONFIRMED
2002054	Now with latest updates Firefox started saving temp files that clutter the downloads tab	UNCONFIRMED
2005352	Dark mode breaks some websites	UNCONFIRMED

162 Total; 162 Open (100%); 0 Resolved (0%); 0 Verified (0%);

• Verify the bug
  • verify if the bug is still valid
  • read the description and try to reproduce it on the newest Firefox version
  • add need-info flag for reporter
    • eg. can you still reproduce the bug?
    • eg. could you provide more info about this?
  • ask for whatever additional details you need to understand

• Replicate the bug
  • if the bug is an enhancement request set the severity flag as enhancement
  • if you cannot reproduce the bug
    • if the reporter doesn't answer 1 week later a requested need-info flag and the bug is INCOMPLETE tag the bug as closeme yyyyMMdd (perhaps 2 weeks later?) and wait for that period before you close it.
    • if the bug has all the info you need to close it, close as WORKSFORME or INVALID
  • if you cannot reproduce the bug and you are on a different OS add a need-replication tag
  • if you cannot reproduce the bug, help the reporter in resolving the problem if he/she answers.
  • if you can replicate the bug in the newer Firefox Versions
    • comment the bug
    • mark it as NEW

Remarks

• If a bug reporter hasn't answered to qa requested added in the first week after he/she reported the bug, they are more likely to be not interested anymore.
• Some of these bugs have more than one comment, maybe those are more likely to be significant and already started to be triaged.

Firefox UNCONFIRMED Team

Latest Untriaged Firefox bugs, UNCONFIRMED, from the last 60 days.

You may want to edit your search, limiting it to only the operating systems you can test.

Full Query

ID	Summary	Status	Op sys	Whiteboard
2008336	some sessions/computers can't start firefox	UNCONFIRMED	Unspecified
2008529	Automation test has significant performance drop in Firefox 140 and 144	UNCONFIRMED	Unspecified
2010125	createImageBitmap() ignores sx,sy,sw,sh parameters when using resize option	UNCONFIRMED	Unspecified
2010148	Automatic setting for web site appearance doesn't work	UNCONFIRMED	Unspecified

4 Total; 4 Open (100%); 0 Resolved (0%); 0 Verified (0%);

• Understand the bug
  • Read the description and comments in the bug to understand the problem.
  • If you don't understand the bug
    • Comment, add need-info flag for reporter.
    • Ask for whatever additional details you need to understand.

• Check if it's a duplicate
  • Search on similar terms in Bugzilla to see if it is a duplicate of another bug.
  • How to search for duplicate bugs: https://developer.mozilla.org/en-US/docs/Screening_duplicate_bugs
  • (How to tell if it's a likely dup)
  • Tag it dupeme? if you're not sure, and move on.
  • This search may reveal what product and component the bug should go into.

• Check if it's a support question
  • If it's a support question (often malware, FF is slow reports)
  • Nicely let the reporter know where to look for the answer or for help.
  • Ask the reporter with a need-info flag to resolve the bug as invalid, or resolve it yourself.

• Test case, if needed
  • If this bug needs a test case and you don't have one:
  • Ask the reporter for one. That might mean simplest or reduced test case code, or a URL.
  • Or you could generate a test case and attach it.

• Replicate the bug
  • Can you replicate the bug? In the same OS?
  • If you can replicated it, and no one else has, leave a comment.
  • If you can't replicate it, and are in the same OS
  • Ask the reporter with need-info if they still see the issue
    • (Especially if it's an older bug and we're on a new version of FF now)
    • If they don't you can resolve it WORKSFORME or ask reporter to do so
    • If they still see the bug, tag it needs-replication
  • If you can't replicated it and are in a different OS
    • Comment
    • tag it needs-replication

• Safe mode, plugins off, New profile
  • In some cases (but not all) you may want to ask the bug reporter if they still see the bug in safe mode (with all plugins disabled) and with a new profile.
  • (((Explain when and when perhaps not to do this)))

• IF you can replicate the bug, and it's likely to be a Firefox bug (not a bug with a plugin, etc)
  • Comment that you replicated the bug
  • Mark it NEW
  • You can keep adding info to the bug if you think it will be useful.

Incoming Team

Bugs Filed Today. All bugs filed in the last 24 hours. Usually this is around 400 bugs, but the number fluctuates over the course of the day.

Full Query

ID	Summary	Product	Component	Status	Op sys
2010204	macOS keyboard shortcut for tiling window to Top / Bottom ( Fn + Ctrl + Up / Down) conflicts with Firefox keyboard shortcut for Go one Tab to the Left / Right (Ctrl + Page Up / Page Down)	Core	Widget: Cocoa	RESOLVED	Unspecified
2010205	Calendar view completely empty in v147	Calendar	General	UNCONFIRMED	Unspecified
2010206	Firefox 147.0 desktop: http insecure pages can't be accessed when browser language is set to Spanish (es-ES)	Firefox	Security	UNCONFIRMED	Unspecified
2010207	Task filter list header is missing	Calendar	Calendar Frontend	RESOLVED	Unspecified
2010208	Text in badges gets highlighted when it matches the markup search	DevTools	Inspector	NEW	Unspecified
2010209	Add tests for compose logins telemetry	Firefox for Android	Logins	NEW	Android
2010210	After clicking a Bing search result, switching tabs before the page fully loads causes the original tab's state to be completely lost (becomes a blank page).	Firefox	Untriaged	UNCONFIRMED	Unspecified
2010211	[wpt-sync] Sync PR 57160 - Add tests for thenables returned from async script	Remote Protocol	Marionette	NEW	All
2010212	Move Intl.RelativeTimeFormat to C++	Core	JavaScript: Internationalization API	ASSIGNED	Unspecified
2010213	Intermittent comm/mail/test/browser/composition/browser_attachment.js | Found an unexpected unknown window with document URI: chrome://mozapps/content/downloads/unknownContentType.xhtml	Thunderbird	Message Compose Window	RESOLVED	Unspecified
2010214	Notes on Google Drive folders are lost (incoinsistently)	Firefox	Tabbed Browser	NEW	All
2010215	Copy-paste and URL in google doc is not working since 148.0b1	Firefox	Report Broken Site	UNCONFIRMED	Linux
2010216	[wpt-sync] Sync PR 57162 - [text-indent] Support `hanging` for the caret position	Core	Layout: Text and Fonts	NEW	All
2010217	Move Intl.DisplayNames to C++	Core	JavaScript: Internationalization API	ASSIGNED	Unspecified
2010218	Move Intl.ListFormat to C++	Core	JavaScript: Internationalization API	ASSIGNED	Unspecified
2010219	Move Intl.Segmenter initialisation to C++	Core	JavaScript: Internationalization API	ASSIGNED	Unspecified
2010220	Move Intl.Collator to C++	Core	JavaScript: Internationalization API	ASSIGNED	Unspecified
2010221	Move Intl.DurationFormat initialisation to C++	Core	JavaScript: Internationalization API	ASSIGNED	Unspecified
2010222	Parts of toolbar and tab bar not responding to mouse	Firefox	Tabbed Browser	UNCONFIRMED	Unspecified
2010223	Move Intl.DateTimeFormat to C++	Core	JavaScript: Internationalization API	ASSIGNED	Unspecified
2010224	Move Intl.NumberFormat to C++	Core	JavaScript: Internationalization API	ASSIGNED	Unspecified
2010225	Move Intl.PluralRules to C++	Core	JavaScript: Internationalization API	ASSIGNED	Unspecified
2010226	Update mozbase packages on PyPI to reflect the addition of mozshellutil	Testing	web-platform-tests	NEW	Unspecified
2010227	test_autoplay_sound_blocking_behavior_for_background_tabs blocked in CI	Mozilla QA	STArFox	NEW	Unspecified
2010228	parent.lock is not deleted or prevents startup	Toolkit	Startup and Profile System	UNCONFIRMED	Unspecified
2010230	Upstream IconListItem from Fenix to A-C	Firefox for Android	General	NEW	Android
2010231	[composable settings] Share the same general UI with the new composable menu	Firefox for Android	Settings	NEW	Android
2010233	Don't change state in TabBar#select if tab is already selected	DevTools	Shared Components	ASSIGNED	Unspecified
2010234	Disable `Always offer to translate` then enable it, the check mark does not appear even though it is enabled	Firefox	Translations	RESOLVED	Windows 11
2010235	CSS anchor positioning fails during overscroll with implicit anchor	Core	Layout: Positioned	NEW	Unspecified
2010236	Prepare for expanded platform coverage of announcement events	Core	Disability Access APIs	ASSIGNED	All
2010237	Remove MainCoroutineRule from TrackingProtectionPanelInteractorTest	Firefox for Android	Tooling	RESOLVED	Android
2010238	Implement DOM ariaNotify method and map it to Gecko accessibility announcement events	Core	Disability Access APIs	ASSIGNED	All
2010239	Add the 'AI for Development' module	Developer Infrastructure	AI for Development	ASSIGNED	Unspecified
2010240	build-decision sometimes doesn't schedule try-pushes: IndexError: list index out of range	Release Engineering	Firefox-CI Administration	NEW	Unspecified
2010241	Intermittent comm/mailnews/imap/test/unit/test_offlineDraftDataloss.js | goOnline - [goOnline : 104] 0 == 1	MailNews Core	Networking: IMAP	NEW	Unspecified
2010242	Allow moving main (new) sidebar icons to top or bottom	Firefox	Sidebar	NEW	Unspecified
2010243	Remove MainCoroutineRule from DesktopModeMiddlewareTest	Firefox for Android	Tooling	RESOLVED	Android
2010244	Map Gecko announcement events to UIA notification events	Core	Disability Access APIs	ASSIGNED	Windows
2010245	Treat empty system identifier the same as missing for determining quirks mode	Core	DOM: HTML Parser	NEW	Unspecified
2010246	position-try doesn't seem to work as expected	Core	Layout: Positioned	NEW	Unspecified
2010247	`margin: inherit` doesn't respect position-try flipped values	Core	Layout: Positioned	NEW	Unspecified
2010248	www.retrogames.cc - The sound for games has crackling sounds	Web Compatibility	Site Reports	NEW	Windows 10
2010249	Duplicate diagram menu for different architectures	Webtools	Searchfox	RESOLVED	Unspecified
2010250	browser_chat_telemetry.js fails standalone due to incorrect expectation for browser.ml.chat.page default	Core	Machine Learning: Frontend	RESOLVED	Unspecified
2010252	Add https://attackanddefense.dev to planet	Websites	planet.mozilla.org	RESOLVED	Unspecified
2010255	Update the expectedDiskCacheSize value in ScriptLoader::CalculateCacheFlag based on the actual size ratio	Core	JavaScript Engine	NEW	Unspecified
2010256	open image is missing from context menu options on inline images	Thunderbird	Message Reader UI	UNCONFIRMED	Unspecified
2010257	[wpt-sync] Sync PR 57163 - Sync interfaces/ with @webref/idl 3.71.0	Core	DOM: Core & HTML	NEW	All
2010258	moz-phab patch should be explicit about which patch failed to apply	Conduit	moz-phab	NEW	Unspecified
2010259	[META] [QA] [QA-4671] Feature configuration testing for "backupService"	Firefox	Profile Backup	NEW	Unspecified
2010260	Intermittent comm/mail/test/browser/tabmail/browser_closing.js | application timed out after 370 seconds with no output	Thunderbird	General	NEW	Unspecified
2010261	Perma browser/components/urlbar/tests/browser/browser_contextualsearch.js | keep_search_query_searchbar - Uncaught exception in test - TypeError: can't access property "dispatchEvent" when Gecko 149 merges to beta on 2026-02-23	Firefox	Address Bar	NEW	Unspecified
2010262	Get rid of contiguous enum outlining	Core	IPC	NEW	Unspecified
2010263	The note icon is missing when hovering a tab(with audio icon) to expand the sidebar	Firefox	Tabbed Browser	NEW	All
2010264	Remove NS_PRINT_PREVIEW define.	Toolkit	Printing	ASSIGNED	Unspecified
2010265	PDF Printing setting Scale >100% ignored	Core	Printing: Output	UNCONFIRMED	Unspecified
2010267	Intermittent browser/extensions/formautofill/test/browser/creditCard/browser_anti_clickjacking.js | single tracking bug	Toolkit	Form Autofill	NEW	Unspecified
2010268	Don't pollute the source tree with the generated LocalesList.kt file	Focus	General	RESOLVED	Android
2010269	[meta] Multi-Context Address Bar - New Tab Search Box	Firefox	Address Bar	NEW	Unspecified
2010270	Use controller.browserWindow in ActionsProviderContextualSearch	Firefox	Address Bar	RESOLVED	Unspecified
2010271	Introduce periodic idle task to remove obsolete entries in "extensions/staged/" directory	Toolkit	Add-ons Manager	NEW	Unspecified
2010272	add a shortcut to toggle encryption	Thunderbird	Untriaged	UNCONFIRMED	Unspecified
2010273	Refactor SavedLoginsStorageController to simplify coroutine usage and improve testing	Firefox for Android	Tooling	ASSIGNED	Android
2010274	soundcloud.com - The audio wave illustration is not rendered correctly with Standard ETP in Private Browsing Mode	Web Compatibility	Privacy: Site Reports	NEW	Windows 10
2010276	The ‘X’ button in the new search box has no tooltip	Firefox	Search	NEW	All
2010277	The new search bar incorrectly fades out the clear button when overflowing	Firefox	Search	RESOLVED	Unspecified
2010278	macOS PKCS#11 utility process tests will fail for beta and release builds once they try to load third-party modules	Core	Security: PSM	NEW	Unspecified
2010279	Add ahochheiden as peer to "Python usage, tools and style" module	Developer Infrastructure	Lint and Formatting	RESOLVED	Unspecified
2010280	[Sidebar] Create test for (C2639190): Verify that the user can Enable the Firefox Sidebar from the Toolbar	Mozilla QA	STArFox	NEW	Unspecified
2010281	[Sidebar] Create test for (C2639191): Verify that the Sidebar button is always displayed with a fresh profile	Mozilla QA	STArFox	NEW	Unspecified
2010282	[Sidebar] Create test for (C2651719): Verify that the sidebar is hidden when hide sidebar option is selected	Mozilla QA	STArFox	NEW	Unspecified
2010283	[Sidebar] Create test for (C2652535): Verify that user can manage pinned extensions on the sidebar	Mozilla QA	STArFox	NEW	Unspecified
2010284	Add AI Controls strings for localization	Firefox	Settings UI	NEW	Unspecified
2010285	SwitchWithLabel should be deleted and usages should be updated to use SwitchListItem	Firefox for Android	Design System and Theming	ASSIGNED	Android
2010286	Firefox 147 reports "Europe/Berlin" instead of "Europe/Zurich" as timezone	Core	JavaScript: Internationalization API	UNCONFIRMED	Windows
2010287	Perfspewer write overhead too high when writing to jitdump files	Core	JavaScript Engine: JIT	NEW	Unspecified
2010288	Update error_verifier for new values of XML_Error to fix XML DoS crashes	Core	XML	NEW	Unspecified
2010289	The ‘X’ button in the new search box is misplaced in RTL builds	Firefox	Search	NEW	All
2010290	Fix UI tests affected by compose snapshot state being observed from multiple threads	Firefox for Android	UI Tests	ASSIGNED	Android
2010291	[Networking] Create test for (C2299604): Verify that users can use a manual proxy server configuration for their network	Mozilla QA	STArFox	NEW	Unspecified
2010292	genel-is.org.tr - Diacritics are misplaced for some letters	Web Compatibility	Site Reports	NEW	Windows 11
2010294	Add Selectable Profile "Profiles" table attributes to backups	Firefox	Profile Backup	NEW	Unspecified
2010295	FileLink: No way to create an account via API	Thunderbird	Add-Ons: Extensions API	UNCONFIRMED	Unspecified
2010296	Migrate remaining XUL checked/disabled attributes to html-style boolean attributes	Thunderbird	Upstream Synchronization	ASSIGNED	Unspecified
2010297	Enable selectable profile support for backups	Firefox	Profile Backup	NEW	Unspecified
2010298	[meta] FxBackup support for selectable profiles	Firefox	Profile Backup	NEW	Unspecified
2010299	Add backwards/forward compatibility updates to the profile backup code	Firefox	Profile Backup	NEW	Unspecified
2010300	Enable searchfox job on enterprise-firefox	Webtools	Searchfox	ASSIGNED	Unspecified
2010301	Handle backing up and restoring between managed - legacy profiles	Firefox	Profile Backup	NEW	Unspecified
2010302	Title Bar Disappearing	Core	Widget: Win32	UNCONFIRMED	Unspecified
2010303	Selectable profile backup telemetry updates	Firefox	Profile Backup	NEW	Unspecified
2010304	fall back to patch application when cherry-pick commit ID does not exist in uplift job	Conduit	Lando	RESOLVED	Unspecified
2010305	Escaped declaration are rendered as invalid/ignored	DevTools	Inspector: Rules	NEW	Unspecified
2010306	[Settings search][A11Y] Settings search icon description might contain unnecessary text	Firefox for Android	Settings	NEW	Android
2010307	Wordpress ADMIN page issue	Firefox	Untriaged	UNCONFIRMED	Unspecified
2010308	Firefox renders extra top border fragment in collapsed-border table with colspan & cell background	Core	Layout: Tables	UNCONFIRMED	Unspecified
2010309	GPUTexture.createView ignores usage	Core	Graphics: WebGPU	UNCONFIRMED	Unspecified
2010311	Generate Comparison Reports from Performance Profiles in CI	Testing	Performance	NEW	Unspecified
2010312	Update libwebrtc to 144	Core	WebRTC	NEW	Unspecified
2010313	Add Smart Tab Grouping API for Settings	Firefox	Tabbed Browser: Tab Groups	NEW	Unspecified
2010314	Warnings during artifact build with AttributeError: 'JarFileReader' object has no attribute 'flush'	Firefox Build System	General	ASSIGNED	Unspecified
2010316	Change overflow menu icon for IP Protection	Firefox	IP Protection	NEW	Unspecified
2010317	3.8% Images (Windows) regression on Thu January 8 2026	Firefox	Sidebar	NEW	Unspecified
2010318	Perma [tier 2] browser/components/tabbrowser/test/browser/tabs/browser_tab_preview.js | tabNotesTests - Node is not focusable via the accessibility API: id: , tagName: html:div, className: tab-preview-note-expand | single tracking bug	Firefox	Tabbed Browser	NEW	Unspecified
2010319	[meta] WebVTT interop investigation	Core	Audio/Video: Playback	NEW	Unspecified
2010321	customise toolbar new window icon broken	Core	Widget: Win32	UNCONFIRMED	Unspecified
2010322	browser_sidebar_prefs.js and browser_tools_migration.js fail standalone because sidebar is not visible	Firefox	Sidebar	ASSIGNED	Unspecified
2010323	Please make me the Triage Owner for Infrastructure & Operations :: Matrix	bugzilla.mozilla.org	Administration	RESOLVED	Unspecified
2010324	[wpt-sync] Sync PR 57166 - [animation-trigger] Enforce single trigger per animation	Core	Layout	NEW	All
2010325	The position property link has an extra parenthesis	Developer Infrastructure	Firefox Source Docs: Content	UNCONFIRMED	Unspecified
2010327	subprocess.CalledProcessError: Command '['msiexec', '/a', ... ] returned non-zero exit status 1603.	Firefox Build System	Toolchains	RESOLVED	Unspecified
2010328	Creating and starting a new profile from within a running instance while there is a pending update applies the update and breaks the running instance	Toolkit	Application Update	NEW	Windows 11
2010329	Tab Notes are incorrectly retained of not displayed when navigating Reddit	Firefox	Tabbed Browser	NEW	All
2010330	Make the EWS request queue more generic	MailNews Core	Networking: Exchange	NEW	Unspecified
2010331	Allow more than 1 concurrent runner in the EWS operation queue	MailNews Core	Networking: Exchange	NEW	Unspecified
2010332	Although "Contrast Control: Custom" is enabled with custom colours set, a generic background colour displays briefly when loading pages	Core	Widget: Gtk	UNCONFIRMED	Unspecified
2010333	Intermittent docshell/test/navigation/test_rate_limit_location_change.html | single tracking bug	Core	DOM: Navigation	NEW	Unspecified
2010334	Enable cron in enterprise-firefox	Release Engineering	Firefox-CI Administration	ASSIGNED	Unspecified
2010335	Ensure Firefox icon is aligned for non-English locales	Firefox	Translations	NEW	Unspecified
2010336	Perfspewer with IONPERF=src has too much overhead	Core	JavaScript Engine: JIT	NEW	Unspecified
2010337	Consolidate no-non-semantic-token-usage stylelint rule into use-design-tokens	Developer Infrastructure	Lint and Formatting	ASSIGNED	Unspecified
2010338	Firefox Enterprise fails to relaunch after sign-out or forced termination, opening Safe Mode warning instead	Firefox Enterprise	Client	NEW	Windows 11
2010339	Slow animation in latest beta 148.0b2 (aarch64)	Firefox	Untriaged	UNCONFIRMED	Unspecified
2010340	Fix tests/scrolling_panning_zooming:/test_default_zoom_persists	Mozilla QA	STArFox	NEW	Windows
2010341	Intermittent mozilla/tests/webgpu/cts/webgpu/web_platform/external_texture/video/cts.https.html | single tracking bug	Core	Graphics: WebGPU	NEW	Unspecified
2010343	Full-page zoom level is shared among all data URIs, making e.g. `data:text/html,<div style="margin-top:300px">Hi` a blank page if you've previously zoomed in on a completely different data URI	Firefox	General	NEW	Unspecified
2010344	Gather all changing child navigables when traversing history	Core	DOM: Navigation	NEW	Unspecified
2010345	Fix tests/address_bar_and_search/test_search_suggestions	Mozilla QA	STArFox	NEW	All
2010346	Switching an existing window into smart window mode doesn't disable the classic chat sidebar	Core	Machine Learning: Frontend	NEW	All
2010348	Thunderbird segfaults with fractional scaling when the send progress dialog is shown	Thunderbird	Untriaged	UNCONFIRMED	Unspecified
2010349	Add "Open in New Smart Window" to context menu	Core	Machine Learning: Frontend	NEW	All
2010350	[Homepage-as-new-tab] Active tab not displayed after closing newtab/homepage	Firefox for Android	Tabs	UNCONFIRMED	Android
2010351	Let Bookmark Manager expand/collapse folders instead of entering them	Firefox	Bookmarks & History	ASSIGNED	Unspecified
2010352	Fix tests/pdf_viewer/test_pdf_navigation on Linux	Mozilla QA	STArFox	NEW	Linux
2010353	Assertion failure: !mFinishedBuildingColumns (Should only call once!), at /builds/worker/checkouts/gecko/layout/generic/ColumnSetWrapperFrame.cpp:107	Core	Layout: Columns	NEW	Unspecified
2010354	Update AndroidX Transition to version 1.7.0	Firefox for Android	Tooling	NEW	Android
2010355	Change the toolbar button connection status icon to a checkmark	Firefox	IP Protection	NEW	Unspecified
2010356	Assertion failure: child == (startRef.GetTreeKind() == TreeKind::Flat ? startContainer->GetChildAtInFlatTree(startOffset) : startContainer->GetChildAt_Deprecated(startOffset)), at /builds/worker/checkouts/gecko/dom/base/ContentIterator.cpp:1073	Core	DOM: Selection	NEW	Unspecified
2010357	Add C++ implementation for parameter negotiation operations	Core	JavaScript: Internationalization API	ASSIGNED	Unspecified
2010359	Doc for messengerUtilities.parseMailboxString() doesn't specify the default for preserveGroups	Thunderbird	Add-Ons: Extensions API	UNCONFIRMED	Unspecified
2010360	Passwords entry details show inconsistent IDN formatting (Unicode title/list vs punycode Website address)	Firefox	about:logins	UNCONFIRMED	Unspecified
2010361	Address Bar Identity Box Popup No Longer Opens When Clicked On Trusted About Pages	Firefox	Address Bar	NEW	Unspecified
2010362	[Homepage-as-new-tab] Widget launch displays homepage in previous active tab, not in a new tab	Firefox for Android	Tabs	UNCONFIRMED	Android
2010363	Assertion failure: !Comment::FromNodeOrNull( TextFragmentDataAtStartRef().GetEndReasonContent()), at /builds/worker/checkouts/gecko/editor/libeditor/WSRunScanner.cpp:325	Core	DOM: Editor	NEW	All
2010364	[Settings search][A11Y] Talkback reads "button" twice when describing the Settings search button	Firefox for Android	Settings	NEW	Android
2010365	Firefox 148b1 for Android address bar not set to textUri	Firefox for Android	Toolbar	UNCONFIRMED	Android
2010366	Update Individual Page/Forget Site to update chat persistence	Core	Machine Learning: Frontend	NEW	Unspecified
2010367	position-try: flip-block is not properly flipping margin on element.	Core	CSS Parsing and Computation	UNCONFIRMED	Unspecified
2010368	Implement privacy metrics widget data service and IPC layer	Firefox	Protections UI	NEW	Unspecified
2010369	Create privacy metrics card Lit component for new tab	Firefox	Protections UI	NEW	Unspecified
2010370	Rename DoZoomEnlargeBy10 and DoZoomReduceBy10 events to DoZoomEnlarge and DoZoomReduce and let the event handlers choose the magnitude to enlarge / reduce	Core	Layout	NEW	Unspecified
2010371	New onboarding cards reach the OS's top and bottom bars only show a thin vertical line of the orange background on the sides	Firefox for Android	Onboarding	NEW	Android
2010372	invites not recogized as invites anymore (treated as own events)	Calendar	General	NEW	Unspecified
2010373	Add state handling and edge cases for privacy metrics card	Firefox	Protections UI	NEW	Unspecified
2010374	Add Nimbus feature gating, prefs, and telemetry for privacy metrics	Firefox	Protections UI	NEW	Unspecified
2010375	Fix two shim bugs noticed after working on bug 2007460	Web Compatibility	Interventions	RESOLVED	Unspecified
2010376	Firefox spends 70x more time than Chrome styling Backbone-Complex-DOM subtest	Core	Layout	NEW	Unspecified
2010377	cleanup the old markup for the accounts and sync section	Firefox	Settings UI	NEW	Unspecified
2010378	Add advanced metrics to privacy metrics card	Firefox	Protections UI	NEW	Unspecified
2010380	[composable toolbar] Focusing then unfocusing the urlbar of a tab displays homepage instead of that tab's webpage	Firefox for Android	Toolbar	UNCONFIRMED	Android
2010382	Filter articles in briefing card from appearing in grid	Firefox	New Tab Page	NEW	Unspecified
2010383	Cancel button always shown for queued landings	Conduit	Lando	NEW	Unspecified
2010384	[wpt-sync] Sync PR 57169 - Map "XSLT" to web-features	Testing	web-platform-tests	NEW	All
2010385	[wpt-sync] Sync PR 57170 - Correct spelling of web-features	Core	Layout: Scrolling and Overflow	NEW	All
2010386	Notifications hidden in fullscreen	Core	Audio/Video: Playback	UNCONFIRMED	Linux
2010387	[wpt-sync] Sync PR 57171 - Add autofill tests	Testing	web-platform-tests	NEW	All
2010388	[meta] UI pieces for selectable profile support for fxbackup	Firefox	Profile Backup	NEW	Unspecified
2010389	Add e-Szigno TLS Root CA 2023 to NSS	NSS	CA Certificates Code	ASSIGNED	Unspecified
2010390	[meta] Fxbackup cross platform support	Firefox	Profile Backup	NEW	Unspecified
2010391	[meta] Fxbackup cross platform support QA/testing bugs	Firefox	Profile Backup	NEW	Unspecified
2010392	[wpt-sync] Sync PR 57173 - Map "createImageBitmap" to web-features	Core	Graphics: Canvas2D	NEW	All
2010394	Don't complete connection without datagram size	Core	Networking: HTTP	NEW	Unspecified
2010395	Backup the shared prefs surrounding data collection in a profile group	Firefox	Profile Backup	NEW	Unspecified
2010396	Add support for chat sidebar to be contextual to a tab group	Core	Machine Learning: Frontend	NEW	Unspecified
2010397	[wpt-sync] Sync PR 57174 - Make mask-image invalidation on image changes less strict	Core	Web Painting	NEW	All
2010398	Add support for editing an already submitted prompt quick action	Core	Machine Learning: Frontend	NEW	Unspecified
2010399	Consider Adding Favicon and Address Bar Treatment to about:translations	Firefox	Translations	NEW	Unspecified
2010400	TLS is (almost) broken when server requests a client certificate	MailNews Core	Networking	UNCONFIRMED	Unspecified
2010401	Broken links on documentation page	Bugzilla	bugzilla.org	NEW	Unspecified
2010402	memory.grow is not correctly implemented for custom page sizes	Core	JavaScript: WebAssembly	ASSIGNED	Unspecified
2010404	Add option to add bug reference at time of landing	Conduit	Lando	NEW	Unspecified
2010405	Open bookmarks directly in a tab group	Firefox	Tabbed Browser: Tab Groups	NEW	Unspecified
2010406	White flashes on the Tab/Title bar uppon every Firefox opening in Dark Mode.	Firefox	Untriaged	UNCONFIRMED	Windows 11
2010407	Detect when stub installer's download request is blocked by our WAF	Firefox	Installer	NEW	Unspecified
2010408	Drafts, Sent, Trash are not localized	Thunderbird	Untriaged	RESOLVED	Unspecified
2010409	Detect when updater download request is blocked by our WAF	Toolkit	Application Update	NEW	Unspecified
2010410	[wpt-sync] Sync PR 57175 - Bump taskcluster from 91.0.1 to 95.1.3 in /tools	Testing	web-platform-tests	NEW	All
2010411	CLDR 48 'h' hour format is possibly web incompatible	Core	Internationalization	NEW	Unspecified
2010412	Support LinkPreview model removal	Core	Machine Learning: On Device	NEW	Unspecified
2010413	focus style not correctly set	Core	DOM: UI Events & Focus Handling	RESOLVED	Unspecified
2010414	Prototype static memory protection	Core	JavaScript: WebAssembly	NEW	Unspecified
2010415	Install telemetry data improvements	Firefox	Installer	NEW	Unspecified
2010416	assistant attempting get_page_content tool call fails	Core	Machine Learning: General	NEW	Unspecified
2010417	Assistent Response Error Handling	Core	Machine Learning: Frontend	NEW	Unspecified
2010418	Disclaimer - Assistant can make mistakes	Core	Machine Learning: Frontend	NEW	Unspecified
2010419	Update documetation theme on harmony	Bugzilla	Documentation	NEW	Unspecified
2010420	In the Folder Tree, the item for the Server has class 'new-messages' but none of the of the other items in the Folder Tree has this class	Thunderbird	Untriaged	UNCONFIRMED	Unspecified
2010421	[wpt-sync] Sync PR 57176 - Reject spline animations if the last value of keyTimes is not 1	Core	SVG	NEW	All
2010422	AI Assistent Loading State	Core	Machine Learning: Frontend	NEW	Unspecified
2010423	[wpt-sync] Sync PR 57177 - Maps "input-selectors" and "selectors" web features	Core	CSS Parsing and Computation	NEW	All
2010424	feature request: Add Rapid Serial Visual Presentation to Reader View	Toolkit	Reader Mode	UNCONFIRMED	Unspecified
2010427	Changing original media element volume and mute should not affect captured audio	Core	Audio/Video: MediaStreamGraph	NEW	Unspecified
2010428	Map Gecko announcement events to Mac NSAccessibilityAnnouncementRequestedNotification	Core	Disability Access APIs	NEW	macOS
2010429	Map Gecko announcement events to ATK notification signal	Core	Disability Access APIs	NEW	Linux
2010430	browser_preview_navigation.js::testToolbarVisibility fails standalone due to CSS transition delay	Toolkit	Printing	ASSIGNED	Unspecified
2010431	Update libpng to new version v1.6.54 from 2026-01-12 23:57:52	Core	Graphics: ImageLib	NEW	Unspecified
2010432	Make sure GeckoSession lifecycle's final state update is working in SHIP-enabled Fenix	GeckoView	General	NEW	Android
2010433	Allizom BZ's Production instance lacks the ephemerality notice that Development (and Allizgub) renders.	Websites	Other	NEW	All
2010434	Cannot sign into connect.mozilla.org and cannot update my password	www.mozilla.org	General	UNCONFIRMED	Unspecified
2010435	Allizgub provides an inoperative BZ V6 instance.	Websites	Other	NEW	All
2010436	Commit Access (Level 3) for Taimur Hasan thasan@mozilla.com	mozilla.org	Repository Account Requests	NEW	Unspecified
2010437	Bookmark Separator can't add / not visible	Firefox for Android	Bookmarks	UNCONFIRMED	Android
2010438	Upgrade insecure requests wrongly upgrades unsupported ports coming from iframes	Core	DOM: Security	ASSIGNED	Unspecified
2010439	[mips64] Failed to build on MIPS64 due to incorrect saved register listing in WasmPI	Core	JavaScript: WebAssembly	NEW	Unspecified
2010440	Bump l10n-changesets.json for 147 dot release	Release Engineering	General	NEW	Unspecified
2010441	update user messages with "history deleted" when associated pages have been removed	Core	Machine Learning: Frontend	NEW	Unspecified
2010442	Handle Loss of Connection	Core	Machine Learning: Frontend	NEW	Unspecified
2010443	Replace uses of bundleOf with direct usage of the Bundle class instead	Firefox for Android	General	NEW	Android
2010444	Handle Out of Budget error	Core	Machine Learning: Frontend	NEW	Unspecified
2010445	Perma custom-car toolchain [taskcluster:error] exit status 2 | single tracking bug	Testing	Performance	NEW	Unspecified
2010446	Now I have two Spam Folders and no Junk Folder	Thunderbird	Untriaged	UNCONFIRMED	Unspecified
2010447	Handle Too Many Requests / Chat Maximum	Core	Machine Learning: Frontend	NEW	Unspecified
2010448	Add support for temporary chats	Core	Machine Learning: Frontend	NEW	Unspecified
2010449	Update FxA mockito tests to handle new argument to sendSingleTab	Firefox for Android	Accounts and Sync	NEW	Android
2010450	Add support for Sync for conversations	Core	Machine Learning: Frontend	NEW	Unspecified
2010451	Integrate natural lanage delete chat/message command	Core	Machine Learning: Frontend	NEW	Unspecified
2010452	Remove or update probes expiring at the end of Firefox 149: CANVAS_FINGERPRINTING_PER_TAB	Core	Privacy: Anti-Tracking	NEW	Unspecified
2010453	Remove or update probes expiring at the end of Firefox 149: PWMGR_IMPORT_LOGINS_FROM_FILE_CATEGORICAL	Firefox	about:logins	NEW	Unspecified
2010454	Remove or update probes expiring at the end of Firefox 149: dom.contentprocess.buildID_mismatch_false_positive	Core	IPC	NEW	Unspecified
2010455	Remove or update probes expiring at the end of Firefox 149: startup.profile_*	Toolkit	Startup and Profile System	NEW	Unspecified
2010457	Remove or update metrics expiring at the end of Firefox 149: contentblocking.*	Core	Privacy: Anti-Tracking	NEW	Unspecified
2010459	Remove or update metrics expiring at the end of Firefox 149: dom.contentprocess.build_id_mismatch_false_positive	Core	IPC	NEW	Unspecified
2010461	Remove or update metrics expiring at the end of Firefox 149: hls.*	Core	Audio/Video: Playback	NEW	Unspecified
2010463	Remove or update metrics expiring at the end of Firefox 149: networking.local_network_access_p*	Core	Networking: HTTP	NEW	Unspecified
2010465	Remove or update metrics expiring at the end of Firefox 149: networking.local_network_access_connection	Core	DOM: Networking	NEW	Unspecified
2010467	Remove or update metrics expiring at the end of Firefox 149: oskeystore.return_codes	Toolkit	Form Autofill	NEW	Unspecified
2010469	Assertion failure: false (MOZ_ASSERT_UNREACHABLE: Missing parent -> child link somehow?Potentially unstable ordering), at /builds/worker/checkouts/gecko/dom/base/nsContentUtils.cpp:12538	Core	DOM: Forms	NEW	Unspecified
2010470	Remove or update metrics expiring at the end of Firefox 149: parsing.svg_unusual_pcdata	Core	DOM: Security	NEW	Unspecified
2010472	Remove or update metrics expiring at the end of Firefox 149: pwmgr.import_logins_from_file_categorical	Firefox	about:logins	NEW	Unspecified
2010473	Remove or update metrics expiring at the end of Firefox 149: startup.profile_*	Toolkit	Startup and Profile System	NEW	Unspecified
2010475	Remove or update metrics expiring at the end of Firefox 149: webrtcdtls.key_exchange_algorithm	Core	WebRTC: Networking	NEW	Unspecified
2010477	Remove or update metrics expiring at the end of Firefox 149: extensions_button.*	WebExtensions	General	NEW	Unspecified
2010479	Remove or update metrics expiring at the end of Firefox 149: genai.linkpreview.*	Core	Machine Learning: General	NEW	Unspecified
2010480	menu bar not responding	Firefox	Untriaged	UNCONFIRMED	Unspecified
2010481	":hover" interrupts "position:sticky" when scrolling with the mousewheel	Core	Layout: Positioned	NEW	Unspecified
2010483	New wpt failures in /css/css-position/sticky/position-sticky-horizontal-rtl-overconstrained.html	Core	Layout: Positioned	NEW	All
2010484	Option elements' text may be difficult to read when the select element's background is set	Core	Layout: Form Controls	UNCONFIRMED	Unspecified
2010485	Add schema validation for SettingGroupManager.registerGroups() to catch configuration errors early	Firefox	Settings UI	ASSIGNED	Unspecified
2010486	Imprecision in Imperial unit conversion	Firefox	Address Bar	UNCONFIRMED	Unspecified
2010487	add select all in tabs	Firefox for Android	Tabs	UNCONFIRMED	Android
2010488	[wpt-sync] Sync PR 57178 - [blink][media] Clean up stale MailboxHolder refs	Testing	web-platform-tests	NEW	All
2010489	Switch toolchain tasks to debian 13 based docker images	Firefox Build System	Toolchains	ASSIGNED	Unspecified
2010490	Intermittent /css/css-overflow/scroll-marker-in-display-none-column-crash.html | single tracking bug	Core	Layout: Scrolling and Overflow	NEW	Unspecified
2010491	Perma rust vendor [taskcluster:error] exit status 1 | Errors occurred; new rust crates were not vendored. | single tracking bug	Firefox Build System	Third Party Packaging	NEW	Unspecified
2010492	[wpt-sync] Sync PR 57179 - [text-indent] Add dynamic tests	Core	Layout: Text and Fonts	NEW	All
2010493	add AI Window theme priority logic in LightweightThemeConsumer	Core	Machine Learning: Frontend	NEW	Unspecified
2010494	add theme special cases with custom CSS and basic style update	Core	Machine Learning: Frontend	NEW	Unspecified
2010495	[wpt-sync] Sync PR 57180 - [Masonry] Rename item-tolerance property to flow-tolerance	Core	Layout: Grid	NEW	All
2010496	WARNING: No module named 'mozilla_taskgraph'/ERROR: Cannot find ccache after bug 2002002	Firefox Build System	Task Configuration	NEW	Unspecified
2010497	Use ZeroCopyUsageInfo* instead of RefPtr<ZeroCopyUsageInfo> if possible	Core	Graphics	NEW	Windows

261 Total; 242 Open (92.72%); 19 Resolved (7.28%); 0 Verified (0%);

To work in this area, go through the bugs with status UNCONFIRMED.

• • Today's UNCO Bugs
  • If you can reproduce a bug, and are fairly sure it is a Mozilla bug, comment on the bug to explain how you reproduced the bug.
  • Include screenshots or a reduced test case, if they seem useful.
  • If you have canconfirm permissions, mark the bug NEW.
  • Assign the bug into a product and component, or tag it needs-component
  • Tag the bug with other triage tasks that may be needed.
  • If the bug is really a support question, please thank the bug reporter in a comment. Explain where the bug reporter should look for an answer.
    • Mark the bug RESOLVED INVALID if you have canconfirm permissions.

Nightly build bug team

Hello! If you'd like to help out with bug management for Nightly builds, please email bugmaster@mozilla.com!

Every night the latest pre-release version of Firefox is made available. If you want to test against the cutting edge of Firefox, download the Nightly build and use it as your main browser. If you find any bugs, file them. (How to File a Bug).

You may also be interested in looking at the bugs others have filed, and see if you can replicate them or add any useful information. Triaging the Nightly bugs will help us catch important bugs as quickly as possible!

1. Download the Nightly build and run it.

2. Make a bugzilla account.

3. Skim over the current bugs against the Nightly release (currently, 24 build).

4. File bugs when you find them.

5. Triage through the list of Nightly bugs. So helpful!

--- replicate the bug, comment, and confirm it

--- needinfo the bug reporter to get more details

--- regression testing with the mozregression tool

For example, the current released version of Firefox is 22.0. The Beta version is 23, and the Aurora version is 24. That means the Nightly build is 25. The bugs filed against that release are listed as being in the 25 branch of Firefox.

• To search later branches, go to the Advanced Search form in Bugzilla, select Firefox for the product, then under the Detailed Bug Information dropdown, scroll through the Versions listed and select the latest one. That search will bring up all bugs reported for the latest nightly build.

• More explanation of the release channels for Firefox:
  • https://wiki.mozilla.org/Features/Release_Tracking
  • https://blog.mozilla.org/channels/2011/07/18/every-six-weeks/

Aurora bug triage team

Hello! If you'd like to help out with bug management for Aurora builds, please email bugmaster@mozilla.com!

Every night the latest pre-release version of Firefox is made available as the Nightly release. After 6 weeks of further development that branch becomes the Aurora release, and is more stable than the nightly. If you want to test against the Aurora release of Firefox, download the Aurora build and use it as your main browser. If you find any bugs, file them. (How to File a Bug).

You may also be interested in looking at the bugs others have filed, and see if you can replicate them or add any useful information. Triaging the Aurora bugs will help us catch important bugs quickly, while you still have a relatively stable development browser to use!

1. Download the Aurora build and run it.

2. Make a bugzilla account.

3. Skim over the current bugs against the Aurora release (currently, the 23 branch).

4. File bugs when you find them...

5. Triage through the list of untriaged Aurora bugs. So helpful!

--- replicate, comment, confirm

--- needinfo the bug reporter to get more details

--- regression testing

Mentored Bugs Team

Many developers tag bugs as good first bugs, or as mentored bugs. Some are tagged with both.

We are having a triage day in May 2013 to rummage through the mentored bugs!

• Sign up here: https://etherpad.mozilla.org/triage-mentored-bugs
  

Currently, mentored bugs feed the Bugs Ahoy site. Good first bugs feed into openhatch.org. (Out of date. Wrote to Asheesh, who is looking into it.)

Help maintain this list for contributors who are new to Mozilla development!

• Is the bug old and stale?
  • Should it be closed?
  • needinfo on the reporter, or mentor, or assignee?
• Is the bug current, and assigned, but the assignee hasn't touched it for a couple of weeks?
  • needinfo the assignee to ask nicely if they're still working on it or intending to
  • If the reporter hasn't touched the bug in a month, unassign it

• Triage through bugs that have the whiteboard flag [good first bug] but NOT the mentor= flag.
  • good first bugs query (no mentor)

• Triaging strategies:
  • Sort the list by component.
    • Pick a particular product and component. Talk with the bugzilla owner of that component or the module owner.
  • Sort the list by ID. It's good to check up on very old bugs with a low ID number.
  • Sort the list by last changed. For bugs that haven't been touched in weeks or months, look if they're assigned and ask the assignee, by commenting with the needinfo flag, if they're still working on it.

• Triage through the bugs that have "mentor=" as a whiteboard flag.

• Triage through bugs that have "good first bug" AND "mentor" in the whiteboard flags.
  • should they have both?

TODO:

• write up how to check on good first bugs
• write up how to choose and tag good first bugs/mentored bugs, and link

Accessibility Triage Team

This is for bug wranglers who would like to help accessibility developers and end users.

• Join #bugmasters and #accessibility

• Meta bug cleanup: this is a very easy task for beginners!
  • Look at accessibility meta bugs
  • Pick one, search for other bugs that are missing, and add them to the meta bug

Core:Layout Triage Team

This is a good triage task for front-end developers. Help us go through UNCONFIRMED Core:Layout bugs, talk with the bug reporters, replicate the bugs, and attached reduced test cases.

The hardest part about layout bug triage is being able to tell apart "is a valid bug" and "is not a valid bug". This typically involves understanding the spec well enough to understand what behavior it requires. It also typically involves reducing the testcase enough that it's possible to try to figure out what parts of the spec are relevant. The really rare skill here is this ability to reduce testcases well. Here are some useful slides that explain how to create reduced testcases.

• UNCONFIRMED Core::Layout bugs
• Sort the list different ways and look over it.
• Pick a bug and read through it and its comments to thoroughly understand it.
• Is the bug reproducible?
• It may be UNCONFIRMED because it is not clear whether a reproducible issue is a problem within a Mozilla product or whether the problem lies somewhere else.
• Search for bugs already tagged testcase-wanted and try to develop a testcase.

Creating a simplified DOM/layout test

• These tips are from a talk by Martijn Wagners
• This saves time for the developer
• It is easier to convert into automated tests

Tools

• DOM Inspector
• Error Console
• Disabling javascript
• HTTP Headers (for network related problems)

Define the problem - URL/example? - Steps to reproduce? - Extensions installed? - Screenshot?

Layout bugs

• Example 1: pop up menus on page are not displayed properly
• https://bugzilla.mozilla.org/show_bug.cgi?id=442304
• example 2: Hovering over links in large list is slow
  • https://bugzilla.mozilla.org/show_bug.cgi?id=449046
• Performance regression
• Adding a way to measure the perf regression

DOM bugs

• example 1: text entry field unable to take focus
  • https://bugzilla.mozilla.org/show_bug.cgi?id=440614
  • Typical editor problem
• example 2
  • https://bugzilla.mozilla.org/show_bug.cgi?id=387406
  • Form -> Select -> Jump-Menus, selectedIndex can be set to a disabled option
  • SelectedIndex and disabled options in select elements

Problems - Report too vague, no url that shows the problem - Difficult/impossible to reproduce - Problem somewhere in an ajax library (which are usually huge) - Problems that can only be seen on a network (http headers,e tc)

Example problem bug

• https://bugzilla.mozilla.org/show_bug.cgi?id=444322

Firefox 3 onLoad event fireing before the page is fully loaded.

• Page that shows the problem, but:
  • It's not happening very often
  • It seems to happen only over a (slow?) network connection
  • The JS code behind it is complicated

More info - http://developer.mozilla.org/en/Reducing_testcases - https://wiki.mozilla.org/MozillaQualityAssurance:Triage