Firefox/Performance Tools and Outreach/Web Compat

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Web compatibility

The work we are tracking in this page focuses on tools and processes to deal with web compatibility issues around correctness and performance.

Webcompat P1 - OPEN

Full Query
ID Summary Component Status Webcompat priority Keywords Assigned to
306344 Marquee should be able to use smoothscroll code Layout NEW P1
390936 Implement Internet Explorer zoom property for css CSS Parsing and Computation REOPENED P1 parity-chrome, parity-edge, parity-ie, parity-safari
851441 [css3-page] implement @page rule size attribute CSS Parsing and Computation ASSIGNED P1 css3, dev-doc-needed, DevAdvocacy, parity-safari, testcase Emily McDonough [:alaskanemily]
1123938 [meta] Make viewport handling consistent with other browsers Layout NEW P1 compat, meta, mobile, parity-chrome, parity-ie
1381071 Consider caching getComputedStyle styles in display: none subtrees. CSS Parsing and Computation NEW P1 perf Emilio Cobos Álvarez (:emilio)
1443863 Implement support for AV1 Still Image File Format (AVIF) ImageLib ASSIGNED P1 dev-doc-needed, feature, nightly-community Jon Bauman [:jbauman:]
1446642 Cant talk or hear anyone on discord WebRTC: Audio/Video NEW P1
1456885 Not able to use Voice for Google Docs Integration due to missing SpeechRecognition support Desktop NEW P1 webcompat:site-wait
1520297 Preload Intermediates on Android Security: PSM NEW P1
1521655 [meta] Support client-side printing in Google Docs and GSuite (Google Workspace) Printing: Setup NEW P1 meta
1524772 Webcompat: Offline unavailable in Gmail Desktop NEW P1 webcompat:contact-ready
1619550 Video plays with only sound and no visual but a black screen on Android Audio/Video: Playback REOPENED P1 John Lin [:jhlin][:jolin]
1636988 paste of url from Google Sheets/'Get link to this cell' fails in Slack DOM: Copy & Paste and Drag & Drop NEW P1 Mirko Brodesser (:mbrodesser)
1637922 Consider disabling dom.netinfo.enabled on mobile General NEW P1 dev-doc-needed Karl Dubost💡 :karlcow
1667348 Blob isolation regresses sandboxed iframe downloads Privacy: Anti-Tracking NEW P1 regression
1678795 NS_ERROR_DOM_ABORT_ERR while opening web.telegram.org and slack.com (frequently involving hit quota limits) DOM: Service Workers ASSIGNED P1 regression Andrew Sutherland [:asuth] (he/him)
1680999 www.bose.com - Instant browser crash Graphics NEW P1
1723891 outlook.live.com responsiveness login is bad at login time Performance NEW P1
1724330 news.google.com - view gets stuck after a click on a category Performance NEW P1

19 Total; 19 Open (100%); 0 Resolved (0%); 0 Verified (0%);


Webcompat P2 - OPEN

Full Query
ID Summary Component Status Webcompat priority Keywords Assigned to
359481 redesign percentage height handling and height distribution in tables Layout: Tables NEW P2
1376061 Space around floated first-letter differs from that in Chrome and IE11 (in "drop caps" effect) Layout: Text and Fonts NEW P2
1403410 Checkbox has 3 states – empty / outlined / with check-mark. Widget: Android ASSIGNED P2 Louis Chang [:louis]
1447524 Double session history entries from https://www.microsoft.com/en-us/news DOM: Navigation NEW P2
1455894 Need to teach selection about the flattened tree / frame tree instead of the light tree DOM: Core & HTML NEW P2
1470025 User Agent stylesheet default opacity for placeholder text Layout: Form Controls NEW P2 Karl Dubost💡 :karlcow
1484928 <img style="content: url()"> is not really interoperable Layout ASSIGNED P2 leave-open Emilio Cobos Álvarez (:emilio)
1495868 Unprefix -moz-fit-content and -moz-available keywords Layout NEW P2 dev-doc-needed, site-compat
1521882 SVG without width/height specified has different intrinsic-sizing behavior in Chrome vs Firefox (e.g. in a float or in flexbox) Layout NEW P2 parity-chrome
1528958 [Bing search page] - Functionality error of the back button attempting to return to the previous page after a searching term process Desktop NEW P2 webcompat:needs-diagnosis Thomas Wisniewski [:twisniewski]
1535985 `<datalist>` HTML element should display autocompletion drop-down UI General NEW P2 leave-open Makoto Kato [:m_kato]
1573990 z-index on `position:relative;display:inline` element also affects its {ib}-split block children. Layout: Block and Inline NEW P2
1593883 Allow content to handle Accel+N and Accel+T in Full Screen mode Keyboard Navigation UNCONFIRMED P2 parity-chrome
1691374 Image inside "preserve aspect ratio" solution invisible Layout NEW P2
1708871 Element with large negative `text-indent` breaks viewports on sites with `direction: rtl` Layout NEW P2
1708884 grid items should resolve their content-based minimum size to 0, if they span a flexible track Layout: Grid NEW P2
1710921 NS_ERROR_INTERCEPTION_FAILED on medicare.gov DOM: Service Workers NEW P2
1726786 Consider adding hover'able elements as valid targets for event retargeting Layout NEW P2

18 Total; 18 Open (100%); 0 Resolved (0%); 0 Verified (0%);


Webcompat P3 - OPEN

Full Query
ID Summary Component Status Webcompat priority Keywords Assigned to
290125 [CSS21] floated :first-letter pseudo-element should act like normal inline (e.g., support line-height) Layout: Floats NEW P3 testcase
406488 Copy highlighted text to clipboard ignores non-inlined CSS styling when pasting as rich text (to HTML editors, MS Word, Excel, Outlook etc.) DOM: Serializers NEW P3 parity-chrome, testcase
505521 Set screen coordinates during HTML5 drag event DOM: Copy & Paste and Drag & Drop NEW P3 DevAdvocacy, html5, parity-chrome, parity-ie, parity-safari
695868 Unable to set document.body.innerHTML of IFrame DOM: Core & HTML NEW P3
713608 HTML5 Video controls are missing in Fullscreen Video/Audio Controls NEW P3
716524 'perspective' only affects child nodes, not further descendants Layout NEW P3
759922 Tabindex cannot be applied to <img> tags on Mac DOM: UI Events & Focus Handling NEW P3 regression
903746 Missing textinput event DOM: Events UNCONFIRMED P3
1043118 Do not select leading/trailing spaces on double clicking. DOM: Selection NEW P3
1199665 Consider making <input type=number> always fall back to parsing numbers as English formatted numbers if parsing them as numbers formatted using the user's locale fails Layout: Form Controls ASSIGNED P3 parity-chrome, parity-edge Jonathan Watt [:jwatt]
1220048 Disabled child element doesn't produce mousedown, mouseup and click events DOM: Events NEW P3
1259924 [quirks mode] mousemove fails because <body> element height doesn't fill the viewport Layout NEW P3 parity-chrome, parity-edge
1273010 Blocky and slow rendering on Firefox Android Nightly - filter: drop-shadow() Graphics ASSIGNED P3 perf Markus Stange [:mstange]
1305387 No "input" event should be fired immediately after "compositionend" event DOM: Events NEW P3
1320588 JPEG with embedded ICC profile renders very dark GFX: Color Management NEW P3
1335627 In quirks mode, toplevel "height:calc(%)" is treated as "auto", unlike raw percent heights (which are honored) Layout NEW P3
1362907 option text in select element with min-height is top aligned instead of centered Layout: Form Controls NEW P3
1378447 Arrow buttons misaligned on mobile view of msn.com Layout NEW P3 testcase
1385419 Parent element stretches to submit input's line-height, rather than its also-specified height. Layout: Form Controls NEW P3 regression
1409200 Implement CSP-3 support for hashes matching external resources with an integrity attribute DOM: Security NEW P3
1428236 In some occasions, navigating back and forth at the site causes the website to be zoomed in yet not resizeable Panning and Zooming NEW P3
1429653 [mobile] reddit.com - scrolling is not happening on position fixed element with overflow scroll Web Painting NEW P3
1434236 Caption width set to 100% in a table has the width of the document and not the table width Layout: Tables NEW P3
1435665 input type=button background-color should be rgb(240, 240, 240) on Android. Widget: Android NEW P3 Dennis Schubert [:denschub][OOO, back September 27]
1443284 percentage height in auto-height table cell in fixed-height table is treated as auto Layout: Tables NEW P3
1449079 PNG background-image icon not positioned at the right place after first rendering Layout: Positioned NEW P3
1471231 iframe.contentWindow.getComputedStyle(..) returns an empty style if the iframe is display: none. DOM: CSS Object Model NEW P3 dev-doc-needed
1476051 Interop issues with select element styling with appearance:none. CSS Parsing and Computation NEW P3
1481581 [meta] More closely align the behavior of '-moz-appearance' with Chrome's '-webkit-appearance' Layout NEW P3 meta Jonathan Watt [:jwatt]
1482733 Geolocation.watchPosition() doesn't work in background on Android O and above DOM: Geolocation NEW P3
1483225 Behaviour of SVG element with invalid mask differs from other browsers and W3C spec SVG NEW P3
1493878 iframe.contentDocument is changed across loading even when it has no src or srcdoc DOM: Core & HTML NEW P3
1494708 Should setting a button disabled in the onclick event prevent form submission? DOM: Core & HTML NEW P3
1503427 Firefox 63 pushing Bootstrap 3 date input text down Layout: Form Controls NEW P3 regression
1521631 Implement overflow:overlay (non-standard) CSS Parsing and Computation NEW P3 Jonathan Watt [:jwatt]
1529471 objectBoundingBox, clip-path behave differently in Chrome and Firefox SVG NEW P3
1531888 If clip-path IRI is missing, Firefox does not ignore it (at least for the purposes of mouse-interactions). SVG NEW P3
1539053 Rotating and/or moving text in creating a new story is very slow and choppy. Canvas: 2D NEW P3
1541964 Input with line-height: 1 may cut off parts of the text, unlike Blink. Layout: Form Controls NEW P3
1544428 Setting window.location.hash to an empty string on a site without a hash causes a popstate event DOM: Navigation NEW P3
1544649 Site with a fixed width is not zoomed in Firefox, zoomed in Chrome by CSS zoom property Layout NEW P3
1546049 input checkbox left border is not visible under certain circumstances on mobile Layout: Form Controls NEW P3
1552473 Scrolling an element with opacity: 0; does not fire "scroll" events Layout NEW P3
1558274 Test-case where active content cannot be clicked in Firefox, but can in Chrome. Web Painting NEW P3
1569510 button inside a summary element doesn't open the full details element DOM: Core & HTML NEW P3
1570722 Firefox and Chrome differ on how to treat an invalid CSP header (need WPT test) DOM: Security NEW P3 good-first-bug
1571785 Images blocked by CSP/etc should still fall back to their alt-text, not be hidden outright. DOM: Security NEW P3 good-first-bug
1575444 No dropmarker is shown for <input list="…"> with <datalist> Layout: Form Controls NEW P3 parity-chrome, parity-safari
1575799 Download from a synology NAS is failing DOM: Core & HTML NEW P3 regression
1584881 support -webkit-transform-origin-x/y for webcompat reasons? CSS Parsing and Computation NEW P3 dev-doc-needed
1589539 text selection with fillColor and backgroundColor being the same Desktop NEW P3 webcompat:site-wait
1590489 Have a test case to ensure keyup and input events are fired when typing in inputs. DOM: Events NEW P3
1593327 Firefox maintains cursor position on contenteditable after right-clicks elsewhere, so users can believe they are still editing when they are not. DOM: Selection NEW P3
1595620 Considering aliasing -webkit-font-feature-settings to font-feature-settings for webcompat CSS Parsing and Computation NEW P3 dev-doc-needed, good-first-bug
1596960 Google Translate Widget creates keyboard trap on use DOM: UI Events & Focus Handling NEW P3 parity-chrome, webcompat:needs-diagnosis
1598913 I am unable to select some text on Ancestry.com DOM: Selection NEW P3 parity-chrome, parity-edge, parity-ie
1603794 Layout difference between Firefox and Chrome on https://ereader.learning.amplify.com Layout NEW P3
1606114 site content is zoomed out and pushed to the left due to wide elements on the page Layout NEW P3
1618240 Consider loading <img loading="lazy"> before they intersect with the viewport Layout NEW P3
1640726 The user is unable to copy a table from Microsoft Excel to Microsoft Word Online DOM: Editor NEW P3 parity-chrome Mirko Brodesser (:mbrodesser)
1641721 option disabled: options are indistinguishable from enabled ones Layout: Form Controls NEW P3
1658226 Flickering cursor when `cursor: ...` set in CSS and spacebar is held Widget: Cocoa NEW P3
1666797 [fragmentation] Printing gets chopped off after first page when using vertical writing-mode 'flex-direction: column' flexbox Layout: Flexbox NEW P3 testcase
1670520 Copy/Paste adds extraneous whitespace when copying text inside a dl DOM: Serializers NEW P3
1724660 Virtual book rendering is janky on zoom ImageLib NEW P3
1726121 Scroll Anchoring results in jump'y scrolling on ekwb.com in GeckoView Layout: Scrolling and Overflow NEW P3
1726152 H2 server push requires new authentication on every page load/refresh Networking: HTTP UNCONFIRMED P3
1727016 slow scroll leaves the image in a fixed position until its heights has passed Panning and Zooming NEW P3 regression
1730636 Firefox refuses to follow a 301 Permanent redirect from https to http Desktop NEW P3
1730684 empty object element has a default size of 300px x 150px on Blink and WebKit DOM: Core & HTML NEW P3

70 Total; 70 Open (100%); 0 Resolved (0%); 0 Verified (0%);


Webcompat Any - RESOLVED

Full Query
ID Summary Component Status Webcompat priority Keywords Assigned to Priority
416771 Allow window.focus() to switch tabs at times when popups are allowed Tabbed Browser VERIFIED P1 regression, testcase Emilio Cobos Álvarez (:emilio) P2
608812 Outer <SVG> element should snap to pixel coordinates SVG RESOLVED ? violet.bugreport --
612118 SVGLocatable.getBBox() fails unless the SVG element it is applied to is attached and rendered SVG RESOLVED P3 Emilio Cobos Álvarez (:emilio) --
737785 Implement 'tab-size' (dropping the -moz- prefix) CSS Parsing and Computation RESOLVED revisit dev-doc-complete, site-compat Jonathan Kew (:jfkthame) P4
748518 padding-bottom/right(block-end/inline-end) is ignored with overflow:auto/scroll because it extends in from the border-box rather than out from the scrollable area Layout: Block and Inline RESOLVED P1 regression P2
827096 on a samsung galaxy s3 with nightly, I am unable to load hookit.com General RESOLVED ? --
866102 ellipsis multiple lines text doesn't work (i.e. add support for -webkit-line-clamp) CSS Parsing and Computation RESOLVED P1 dev-doc-complete Cameron McCormack (:heycam) --
941356 drag image not correctly created when parent has css transform DOM: Copy & Paste and Drag & Drop RESOLVED P2 parity-chrome, parity-edge, testcase Emilio Cobos Álvarez (:emilio) --
970802 [UI Events][Input Events] implement beforeinput event DOM: Editor RESOLVED P2 dev-doc-complete, parity-chrome, parity-safari Masayuki Nakano [:masayuki] (he/him)(JST, +0900)(Away: 9/18-9/26) P3
981248 <input> has focus/blur issues when it has focus and its type changes to/from type=number Layout: Form Controls RESOLVED P1 Emilio Cobos Álvarez (:emilio) P2
1092007 For flex items in a vertical flex container, only treat heights as definite (for resolving % heights on children) if the flex-basis (or flex container's height) is also definite Layout RESOLVED P1 Daniel Holbert [:dholbert] P2
1112032 [meta] Implement MediaSession API Audio/Video: Playback RESOLVED P3 dev-doc-complete, DevAdvocacy, feature-testing-meta, meta C.M.Chang[:chunmin] P3
1174452 Copying text with the style "white-space: pre;" does not preserve white space (spaces, tabs, newlines) (Pretty old bug 116083 has come back after change by bug 1151873) DOM: Serializers VERIFIED ? parity-chrome, regression Mirko Brodesser (:mbrodesser) P3
1178763 TouchEvent.pageX/pageY should be undefined DOM: Events RESOLVED P2 compat, dev-doc-complete, site-compat Olli Pettay [:smaug] P3
1200585 when RecomputePosition optimization moves an element, we don't move fixed positioned elements whose hypothetical box comes from that element Layout: Positioned RESOLVED ? regression Emilio Cobos Álvarez (:emilio) P3
1218456 HTMLAnchorElement.click() does not trigger if element is not in document DOM DOM: Core & HTML RESOLVED ? Emilio Cobos Álvarez (:emilio) P3
1220810 Consider hardcoding localhost names to the loopback address Networking: DNS RESOLVED ? dev-doc-complete, perf-alert Andrea Marchesini [:baku] P3
1225665 Implement RegExp lookbehind JavaScript Engine RESOLVED P1 dev-doc-complete, parity-chrome --
1248897 Expose SpeechRecognition to the web Web Speech RESOLVED P1 dev-doc-needed, feature André Natal P1
1256980 "z-index" has an effect on transformed content in Firefox, but not in Edge/Safari/Chrome Layout RESOLVED P2 Emilio Cobos Álvarez (:emilio) P2
1262842 [CSP] Blocks the use of style attributes inside SVG without generating console errors DOM: Security RESOLVED ? Christoph Kerschbaumer [:ckerschb] P2
1312588 implement fit-content(<length-percentage>) value of width/min-width/max-width property Layout RESOLVED revisit dev-doc-complete, DevAdvocacy Boris Chiou [:boris] P3
1316534 [css-flexbox] A non-default "flex-basis" incorrectly prevents min-size:auto from being clamped by specified size Layout: Flexbox RESOLVED P1 Ting-Yu Lin [:TYLin] (UTC-7) --
1319215 The "Contre Jour" game does not start DOM: CSS Object Model RESOLVED ? P3
1328672 Date.parse() or new Date() doesn't allow hours only for timezone offset on ISO 8601 JavaScript: Standard Library RESOLVED P1 parity-chrome, parity-edge Eric Skoglund [:tephra] P3
1358633 window.find does not work in Firefox for Android and throws NS_ERROR_NOT_AVAILABLE DOM: Core & HTML RESOLVED P3 Emilio Cobos Álvarez (:emilio) P5
1361856 Implement RegExp s (dotAll) flag JavaScript Engine RESOLVED ? dev-doc-complete, parity-chrome, parity-safari, triage-deferred Iain Ireland [:iain] P3
1362154 Implement RegExp named groups JavaScript Engine RESOLVED P2 dev-doc-complete, parity-chrome, parity-safari Iain Ireland [:iain] P2
1365806 empty element has an offsetheight if given overflow-y:scroll, unlike other browsers Layout: Scrolling and Overflow RESOLVED P3 polish, testcase Emilio Cobos Álvarez (:emilio) P3
1366115 SVG element with artifacts at certain sizes (on nytimes.com) Web Painting RESOLVED ? --
1371386 Firefox does not always prefer `font.name-list.emoji` when showing emojis Layout: Text and Fonts RESOLVED P3 Jonathan Kew (:jfkthame) P3
1383650 Implement SVG geometry properties in CSS SVG RESOLVED ? dev-doc-needed violet.bugreport P3
1392460 deltaMode default should be DOM_DELTA_PIXEL DOM: Events RESOLVED P2 Emilio Cobos Álvarez (:emilio) P2
1402369 Implement Web Share API on Fenix General RESOLVED ? dev-doc-needed Dylan Roeh (:droeh) (he/him) P1
1407167 aria ROLE values are case sensitive Disability Access APIs RESOLVED revisit marcos P5
1409490 meta-viewport makes elements with inner :active content unclickable. DOM: UI Events & Focus Handling RESOLVED ? P2
1409526 Investigate whether an alias for webkitSpeechRecognition is needed for webcompat. Web Speech RESOLVED ? Alexandre LISSY :gerard-majax --
1414600 viewport units incorrect in print CSS Parsing and Computation RESOLVED ? testcase Emilio Cobos Álvarez (:emilio) P2
1415789 -moz-appearance button-bevel should behave like -webkit-appearance: button-bevel Layout: Form Controls RESOLVED P3 Louis Chang [:louis] P3
1418472 abs-pos placeholder may end up on the wrong side of a line-break [was: Wrong position of github issue name on hover] Layout RESOLVED ? Jonathan Kew (:jfkthame) P3
1422334 reload after history.replaceState after 3xx redirect shows wrong url in URL bar and Location api DOM: Navigation RESOLVED P2 regression Boris Zbarsky [:bzbarsky] P2
1440677 herokuapp.com - Problems with spaces in filenames (content-disposition not quoted) Networking RESOLVED P2 dev-doc-complete :Gijs (he/him) P2
1442050 Add UA override for my.nintendo.com Tooling & Investigations RESOLVED ? Dennis Schubert [:denschub][OOO, back September 27] P2
1444343 Unable to edit question text on www.quora.com Keyboards and IME RESOLVED ? P3
1448730 After a longpress in an input or textarea, Firefox Android selects the previous word even when there's a space DOM: Selection RESOLVED ? Makoto Kato [:m_kato] P1
1454290 Automatic Caption does not work Audio/Video: Playback RESOLVED ? webcompat:site-wait P3
1456052 Textarea padding crops text to the content box in the block direction, unlike other browsers. Layout: Form Controls RESOLVED revisit Emilio Cobos Álvarez (:emilio) P3
1461611 Youtube videos only appear with a page title of "YouTube" in Firefox on Android Mobile RESOLVED ? P1
1475316 Consider adding support for -webkit-autofill (and a default stylesheet using it) for interop with Chrome CSS Parsing and Computation RESOLVED revisit dev-doc-complete Emilio Cobos Álvarez (:emilio) P3
1475738 Fennec and Geckoview do not fire letter or number keypress events while typing into a contenteditable element. Keyboards and IME RESOLVED ? Makoto Kato [:m_kato] P2
1481112 User Agent Stylesheet Default for select, button Layout: Form Controls RESOLVED P2 Emilio Cobos Álvarez (:emilio) --
1481400 [Youtube] Play/Pause video using spacebar is not functional after clicking on Play/Pause button DOM: UI Events & Focus Handling VERIFIED P2 Emilio Cobos Álvarez (:emilio) P2
1481923 [Android] preventDefault() in contextmenu listener cancels touch event generation (sends touchcancel) Panning and Zooming RESOLVED P1 Hiroyuki Ikezoe (:hiro) P2
1493271 Clicking on "share icons" does not open new window DOM: UI Events & Focus Handling RESOLVED ? P2
1498729 Updating the content for a viewport meta tag should discard old values DOM: Core & HTML RESOLVED P1 Hiroyuki Ikezoe (:hiro) P2
1503241 The CloudShell on Google Cloud Platform does not load (prompt missing) DOM: Core & HTML RESOLVED P2 regression P2
1505471 (intersection-observer) intersectionRect not mapped to the document containing the target in iFrames Layout RESOLVED ? Emilio Cobos Álvarez (:emilio) P3
1507495 Enable Pointer events on GeckoView by default DOM: Events RESOLVED ? dev-doc-needed Olli Pettay [:smaug] P3
1507744 word-break: break-all on an inline doesn't cause breaks Layout: Text and Fonts RESOLVED ? Jonathan Kew (:jfkthame) P3
1508177 Consider shrinking content even if no content area gets visible Panning and Zooming RESOLVED ? correctness Hiroyuki Ikezoe (:hiro) P3
1509527 Update the values supported by our 'inputmode' implementation DOM: Core & HTML RESOLVED P3 dev-doc-complete, parity-chrome Jonathan Watt [:jwatt] P2
1511231 PointerEvent.getCoalescedEvents return empty when using pen input and while the pointer is down DOM: UI Events & Focus Handling RESOLVED revisit Edgar Chen [:edgar] P3
1514538 SVGMatrix and DOMMatrix are not interchangeable in Path2D.addPath SVG RESOLVED ? compat, parity-chrome Kagami :saschanaz P3
1514655 Plaintext documents in subframes (or <object>) don't get word-wrapping CSS Parsing and Computation RESOLVED ? Emilio Cobos Álvarez (:emilio) P3
1515073 Back/forward buttons should expose only pages with user-interaction DOM: Navigation RESOLVED ? site-compat Johann Hofmann [:johannh] P2
1517172 Going into fullscreen mode makes the bottom area of the viewport permanently concealed by the software keyboard (cannot scroll down to the bottom area) Layout RESOLVED P2 P2
1520869 Setting disabled=true in a checkbox onClick handler cancels onChange handler DOM: Core & HTML RESOLVED P3 Kagami :saschanaz P2
1520983 Interop issues with composition events and IMEs like the OSX emoji picker and accent menu of Western keyboard layout DOM: Events RESOLVED revisit Masayuki Nakano [:masayuki] (he/him)(JST, +0900)(Away: 9/18-9/26) P3
1523541 window.innerHeight changes with the dynamic toolbar on Firefox Layout RESOLVED P3 Hiroyuki Ikezoe (:hiro) P3
1526268 Text selection caret incorrectly positioned in search box inside position:fixed element DOM: Selection RESOLVED ? regression Ting-Yu Lin [:TYLin] (UTC-7) P3
1527949 Implement whatever more-interoperable behavior the CSSWG comes up with, for making block-end padding scrollable on scrollable elements Layout: Scrolling and Overflow RESOLVED P3 Ting-Yu Lin [:TYLin] (UTC-7) P3
1528305 Behavior on meta and location.href redirects to an unknown protocol can break pages. DOM: Navigation RESOLVED ? dev-doc-needed, site-compat Emilio Cobos Álvarez (:emilio) P3
1533630 Gecko fires click events for middle and right clicks, against the uievents spec. DOM: Events RESOLVED ? John Dai[:jdai] P2
1540203 overflow-anchor difference in behavior compared to Chrome Layout: Scrolling and Overflow RESOLVED ? Emilio Cobos Álvarez (:emilio) P3
1542784 Support <img loading="lazy"> lazy-loading DOM: Core & HTML RESOLVED revisit dev-doc-complete Hiroyuki Ikezoe (:hiro) --
1543312 caret and characters insertion are erratic in a contenteditable with tinyMCE on Android DOM: Editor RESOLVED ? Makoto Kato [:m_kato] P3
1544455 [webvtt] cue class spans get rendered as block elements instead of inline elements Audio/Video: Playback VERIFIED ? Alastor Wu [:alwu] P2
1545823 The lack of StyleSheet.rules (instead of cssRules) make videojs player fails (also addRule() and removeRule() ) DOM: CSS Object Model RESOLVED P1 dev-doc-complete, webcompat:contact-ready Emilio Cobos Álvarez (:emilio) --
1547624 cannot scroll on mobile version Web Painting VERIFIED ? regression Matt Woodrow (:mattwoodrow) P2
1548753 list numbering recovery with wrong markup has changed behavior. Layout: Generated Content, Lists, and Counters RESOLVED ? regression Mats Palmgren (:mats) P1
1550105 Negative values in meta viewport result in different initial viewports on Firefox and Chrome Layout RESOLVED ? Hiroyuki Ikezoe (:hiro) P3
1550248 Consider sniffing to detect m3u8 sent as content-type:text/plain, as Chrome seems to Audio/Video: Playback RESOLVED P3 parity-chrome Paul Adenot (:padenot) P3
1550710 SVG containing downsized image displayed with img tag has pixel aliasing (flutter.dev logo) ImageLib VERIFIED ? Andrew Osmond [:aosmond] P3
1551247 Adding material.angular.io PWA to home screen does nothing on Fennec DOM: Core & HTML RESOLVED revisit P2
1551272 Washington Post web site reader comments no longer display DOM: Core & HTML RESOLVED ? --
1551276 Autodetect legacy encoding on unlabeled pages Internationalization RESOLVED ? Henri Sivonen (:hsivonen) P3
1551729 Cannot login to Verizon Fios Quantum Gateway router Networking: Cookies RESOLVED ? regression, site-compat Andrea Marchesini [:baku] P2
1556275 Handle unknown values for width and height as 'Auto' in viewport meta tag Layout VERIFIED ? regression Hiroyuki Ikezoe (:hiro) P3
1556511 initial render of a Coinbase svg graph is wrong in Firefox Nightly SVG RESOLVED ? regression Daniel Holbert [:dholbert] P2
1560055 img with negative integers for the width or height attributes are ignored DOM: Core & HTML RESOLVED ? Boris Zbarsky [:bzbarsky] P3
1561794 The select does not show the second digit Layout: Form Controls VERIFIED P2 Emilio Cobos Álvarez (:emilio) P3
1563649 Computed value of 'bottom' for a position:fixed element is different in Firefox than in Chrome for Android Layout VERIFIED ? regression Hiroyuki Ikezoe (:hiro) P3
1565838 Android 6 mpeg audio "Media Resource" "could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) Details: ProcessOutput", html5 ended event does not fire Audio/Video VERIFIED ? regression John Lin [:jhlin][:jolin] P3
1566795 In Outlook - Ctrl+B doesn't work on already embolden pasted input DOM: Events RESOLVED P3 Masayuki Nakano [:masayuki] (he/him)(JST, +0900)(Away: 9/18-9/26) P2
1567237 overflow:scroll on elements not needing to scroll prevents keyboard panning on main document, unlike Chrome Layout: Scrolling and Overflow RESOLVED ? Emilio Cobos Álvarez (:emilio) P3
1570566 Taobao.com isn't displayed properly in landscape mode on Android Mobile RESOLVED ? Emilio Cobos Álvarez (:emilio) --
1573245 Web Authentication - Change AuthenticatorTransport to be other than an `enum` DOM: Web Authentication RESOLVED ? J.C. Jones [:jcj] (he/him) [taking a break] P1
1573648 site scaling is off, showing desktop version instead of mobile due to mis-handling trailing characters in scale values Layout VERIFIED ? regression Hiroyuki Ikezoe (:hiro) --
1574223 Consider treating document level ontouchmove as passive DOM: Events RESOLVED ? site-compat Olli Pettay [:smaug] --
1575947 UTF-8 and UTF-16 atomization functions don't produce the same atom (was: The page goes blank after loading on ca.warbyparker.com) JavaScript Engine RESOLVED ? regression Jeff Walden [:Waldo] P1
1578609 Media element didn't start loading from its source element child with type="" Audio/Video RESOLVED ? Alastor Wu [:alwu] P2
1579186 element.innerText within an <foreignObject> is incorrect SVG RESOLVED ? Robert Longson [:longsonr] P3
1581512 Align XTCO-Nosniff behaviour with Chrome DOM: Security RESOLVED P1 Sebastian Streich [:sstreich] P2
1584890 abspos root element (html) ignores top/right/bottom/left properties, if it has "display:flex" or "display:grid" Layout RESOLVED revisit Ting-Yu Lin [:TYLin] (UTC-7) P3
1585485 [css-flexbox] Treat input elements with percent sizes as having "compressible" min-content sizes Layout: Flexbox RESOLVED P2 Ting-Yu Lin [:TYLin] (UTC-7) --
1586909 m.twitch.tv infinitely scrolls Layout: Scrolling and Overflow RESOLVED ? regression Emilio Cobos Álvarez (:emilio) --
1590435 Preventing default for click events on GeckoView browsers prevents <select> options from opening GeckoViewExample RESOLVED ? Dylan Roeh (:droeh) (he/him) P1
1590839 Background is not clipped appropriately when using -webkit-background-clip: text and background-attachment: fixed on animated gif background Web Painting RESOLVED revisit P3
1591219 Chrome and Firefox differ in visual ordering of certain table cells Layout: Tables RESOLVED ? testcase Mats Palmgren (:mats) P3
1591329 [GamePad] Require secure context for getGamePads() in Nightly DOM: Device Interfaces RESOLVED ? dev-doc-needed, site-compat Marcos Caceres [:marcosc] P2
1591366 Bad performance with deeply-nested display: grid elements Layout: Grid RESOLVED P2 perf, testcase Sean Feng [:sefeng] P3
1591374 Numerous sites fail to load after upgrade to Firefox 70.0 Storage: localStorage & sessionStorage RESOLVED ? P2
1592435 www.matele.be causes completely broken scrolling on Fenix with scroll-anchoring on. Panning and Zooming RESOLVED ? Botond Ballo [:botond] P2
1594449 Experimentally implement <link rel="preload"> in the content process as a speculative load with higher priority DOM: Core & HTML RESOLVED P2 dev-doc-needed Honza Bambas (:mayhemer) P1
1595435 bankhapoalim.co.il login - can't enter username or password DOM: UI Events & Focus Handling VERIFIED ? regression, webcompat:needs-diagnosis Emilio Cobos Álvarez (:emilio) P2
1598145 longines.com does not adjust to the screen size in portrait mode Panning and Zooming RESOLVED ? regression Brad Werth [:bradwerth] P2
1602347 Firefox returns strange value for dpi. DOM: Core & HTML RESOLVED ? Emilio Cobos Álvarez (:emilio) --
1603629 dominant-baseline hanging is inconsistent with other UAs SVG RESOLVED revisit parity-chrome Robert Longson [:longsonr] P5
1605803 content property of getComputedStyle is being returned as none CSS Parsing and Computation RESOLVED ? Emilio Cobos Álvarez (:emilio) --
1610899 Closed captions list is cut off if there are many tracks Video/Audio Controls RESOLVED ? :Gijs (he/him) P3
1615930 MP4 video does not diplays the last frames of the video Audio/Video: Playback RESOLVED ? John Lin [:jhlin][:jolin] P1
1616132 getProgramParameter(ATTACHED_SHADERS) always returns 2 Canvas: WebGL RESOLVED P2 regression Jeff Gilbert [:jgilbert] P1
1616620 input type='number' with maxlength attribute is enforced on firefox and not chrome and safari Layout: Form Controls VERIFIED ? regression Emilio Cobos Álvarez (:emilio) --
1617515 Gaps in the underline don't align right when an emoji is placed in the text Layout: Text and Fonts RESOLVED ? Jonathan Kew (:jfkthame) P2
1617987 https://magmalabs.io redirects to https://www.magmalabs.io in Chrome but not Firefox [SSLCommonNameMismatchHandling] Security VERIFIED ? parity-chrome :prathiksha P2
1619166 Uploaded .ics file <input type="file"> has an empty mime type on Windows DOM: Core & HTML RESOLVED revisit P3
1619169 Planet mozilla content gets visibly clipped when dynamic toolbar is hidden on WebRender Panning and Zooming RESOLVED ? Hiroyuki Ikezoe (:hiro) P2
1621523 Firefox 74 has drawing issues with Amazon Sumerian Editor Canvas: WebGL VERIFIED P1 regression Jeff Gilbert [:jgilbert] P1
1623239 Latest version of Firefox no longer accepts MacOS text clippings in the google search field. This is a standard part of our work flow. DOM: Copy & Paste and Drag & Drop VERIFIED P1 regression Masayuki Nakano [:masayuki] (he/him)(JST, +0900)(Away: 9/18-9/26) P2
1623536 Re-enable TLS 1.0 in Firefox 75 (Beta) Security: PSM VERIFIED P1 site-compat Martin Thomson [:mt:] P1
1625384 Remove window.onappinstalled event, as it was never used or shipped DOM: Events RESOLVED P3 dev-doc-complete, parity-safari Marcos Caceres [:marcosc] --
1626142 The map is no longer displayed when bringing the app in foreground Canvas: 2D RESOLVED ? regression Sotaro Ikeda [:sotaro] P3
1626997 Enable <link rel=preload> support by default Networking RESOLVED P2 dev-doc-needed Emilio Cobos Álvarez (:emilio) P2
1627347 getComputedStyle() should return implicit grid tracks DOM: CSS Object Model RESOLVED ? regression --
1628739 Hit region for scrolling div is wrong on specific page `will-change: transform;` and a filter on parent Web Painting RESOLVED revisit P3
1633621 scryfall.com - Unable to type General RESOLVED ? Makoto Kato [:m_kato] P3
1633708 Scrollbars overlap content in tab-modal content JS prompts/dialogs when the line cannot break Notifications and Alerts RESOLVED ? Tim Nguyen :ntim P3
1638773 device-width conflict values in between initial-scale and width Panning and Zooming VERIFIED ? regression Brad Werth [:bradwerth] P1
1639972 Table is not kept when pasting to Google docs DOM: Selection RESOLVED ? Mirko Brodesser (:mbrodesser) P1
1641139 Absolutely-positioned element in <ruby> is not shown Layout: Ruby RESOLVED ? Xidorn Quan [:xidorn] UTC+11 --
1648344 Items are overlapped Panning and Zooming RESOLVED ? Brad Werth [:bradwerth] P3
1653474 dynamic insert http-equiv='refresh' meta on an already loaded document doesn't create navigation DOM: Core & HTML RESOLVED P3 Sean Feng [:sefeng] P3
1654723 Scrolling is very laggy on image gallery on drive.google.com Graphics RESOLVED ? regressionwindow-wanted Jamie Nicol [:jnicol] P2
1655965 defect in the third party WYSIWYG HTML (CKEditor) when using Mdaemon email DOM: Editor RESOLVED ? --
1659218 <input disabled> incorrectly responds to dispatchEvent() DOM: Events RESOLVED ? Kagami :saschanaz P2
1661316 "Add to cart" button disappears on hover on gog.com Layout RESOLVED ? regression Hiroyuki Ikezoe (:hiro) --
1661423 Content-Security-Policy upgrade-insecure-requests is applied to <form>s on 127.0.0.0/8 DOM: Security RESOLVED ? Frederik Braun [:freddy] P2
1663836 HTTP headers with spaces in the name in HTTP2 should send ERR_HTTP2_PROTOCOL_ERROR Networking: HTTP RESOLVED ? Manuel Bucher P3
1668952 Can't upload photos from the photo gallery on ebay.com General RESOLVED ? (No longer employed by Mozilla) Aaron Klotz P1
1669050 Cannot paste SVG images inside contenteditable DOM: Editor RESOLVED ? dataloss, parity-chrome Mirko Brodesser (:mbrodesser) P3
1669742 window.matchMedia result doesn't match original query for aspect-ratio 1/1 CSS Parsing and Computation RESOLVED P2 Emilio Cobos Álvarez (:emilio) P2
1673006 Incorrect position/offset for display: table; elements inside flex with width: 100%; Layout: Flexbox RESOLVED ? Mats Palmgren (:mats) --
1673511 [Bug] weird sticky keyboard pop up behaviour General RESOLVED ? Makoto Kato [:m_kato] P1
1673885 myvue.com breaks sometimes after a reload (Can't access rules of still-loading stylsheet) CSS Parsing and Computation RESOLVED ? Emilio Cobos Álvarez (:emilio) P2
1680677 open.spotify.com - First paint is incomplete Graphics RESOLVED ? --
1681375 Chrome seems to force empty contenteditables to have some height, while Firefox may not Layout: Text and Fonts RESOLVED ? Emilio Cobos Álvarez (:emilio) P2
1684817 Laggy scrolling on duellinksmeta.com Graphics: WebRender RESOLVED ? regression, reproducible Glenn Watson [:gw] (PTO until 24th Sept) --
1684973 Event offsetX/Y differ in Chrome and Firefox for mouse events in SVGs DOM: Events RESOLVED ? Emilio Cobos Álvarez (:emilio) --
1686326 [quirks] Chrome allows negative top margin on <button> to position them in transitional DTD, Firefox does not. Layout: Block and Inline RESOLVED ? parity-chrome, testcase Mats Palmgren (:mats) P3
1688783 youtube.com - Framerate drop is quite high Audio/Video: cubeb RESOLVED P2 regression Paul Adenot (:padenot) P1
1688888 Audio scrubber on sputniknews.com is draggable outside of the area it should be Layout RESOLVED P2 regression Michael Comella (:mcomella) [needinfo or I won't see it] --
1692380 marquee tag scrolling overflows when the parent is a flexbox element Layout VERIFIED ? regression Emilio Cobos Álvarez (:emilio) --
1696333 top bar partially painted Panning and Zooming RESOLVED ? --
1709152 Mac accent menu insertion misbehaves when suppressing beforeinput event DOM: Events RESOLVED ? inputmethod Masayuki Nakano [:masayuki] (he/him)(JST, +0900)(Away: 9/18-9/26) P3
1717760 initKeyEvent on KeyboardEvent should return undefined DOM: Events RESOLVED P1 dev-doc-complete Masayuki Nakano [:masayuki] (he/him)(JST, +0900)(Away: 9/18-9/26) P3
1730834 Image doesn't animate if loaded after location.replace() call. Performance RESOLVED P3 regression Emilio Cobos Álvarez (:emilio) --

166 Total; 0 Open (0%); 147 Resolved (88.55%); 19 Verified (11.45%);


Webcompat interventions

Tools P1

Full Query
ID Summary Status Whiteboard Keywords Assigned to
1585804 Add telemetry probes for interventions NEW

1 Total; 1 Open (100%); 0 Resolved (0%); 0 Verified (0%);


Tools P2

Full Query
ID Summary Status Whiteboard Keywords Assigned to
1448747 Neutralize FastClick NEW
1610003 Add a UA override for www.sbs.com.au NEW Ksenia Berezina [:ksenia]
1628463 Add UA override for www.eiger.io NEW

3 Total; 3 Open (100%); 0 Resolved (0%); 0 Verified (0%);


Fixed bugs - View in Bugzilla

webcompat.com high priority issues (On GitHub)