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Fixed in the last week.

Full Query
ID Summary Priority Status
429592 catch process hangs -- RESOLVED
441481 excessive IO on urlclassifier3.sqlite -- RESOLVED
490661 bookmark backups should be async -- RESOLVED
492805 GetHasChildren executes too many queries -- RESOLVED
532150 session file should be read on a background thread P2 RESOLVED
535519 session restore is overly event hungry -- RESOLVED
542032 Don't look up prefs on every tab & window close -- RESOLVED
561450 Stop supporting session ids in Places -- RESOLVED
566489 Enable inline autocomplete again, but make it smarter (perceived performance) -- VERIFIED
566746 Form history should use asynchronous storage API -- RESOLVED
589114 Use frame scheduling for animated Fullscreen toolbar hiding -- RESOLVED
613588 Replace livemarks with asynchronous load-on-demand livemarks (was: Livemarks cause synchronous I/O during txul) -- RESOLVED
649216 Remove unnecessary delay when clicking tab close buttons sequentially -- RESOLVED
650968 Enabling a lightweight theme (Persona) causes significant startup slowness -- VERIFIED
669845 The quick find bar causes a zombie compartment that lives until the next search (only on pages with onclick handlers) -- RESOLVED
675539 Automatically unload (discard/hibernate) longly unused tabs to free resources / when running out of memory -- RESOLVED
682602 setupSearchEngine in about:home shows up in startup profiles -- RESOLVED
695829 Add telemetry probes to measure how long it takes for us to switch in and out of private browsing mode -- RESOLVED
697377 Form Autocomplete should use asynchronous storage API -- RESOLVED
699051 Track slow sql queries on main thread + send them in via telemetry -- RESOLVED
699843 Make all Favicons APIs asynchronous -- RESOLVED
699850 [meta] Refactor all synchronous history APIs to use async Storage APIs P2 RESOLVED
699859 Refactor nsContentPrefService.js to use async Storage -- RESOLVED
700250 Deprecate synchronous methods to add a visit (addVisit, addPageWithDetails, addURI) -- RESOLVED
700923 pages with many subframes can cause UI freezes during data collection -- RESOLVED
701872 Searching for cause of multi-minute startups -- RESOLVED
702559 Create a pure-async mozIStorageAsyncConnection -- RESOLVED
702815 Maintain a list of open SQLite connections -- RESOLVED
702848 finalize the statements in services/sync/modules/engines/forms.js -- RESOLVED
702926 Remove spinner from AwesomeBar -- RESOLVED
705597 about:blank subframe entries in session restore make browser slow -- RESOLVED
708667 Add telemetry probe for startup -- RESOLVED
708788 Add telemetry probes for new/close tab animations -- RESOLVED
709182 "connecting" in tab title when reloading is unnecessary visual noise -- RESOLVED
710895 Port IE profile migrator to JS -- RESOLVED
711193 turn on "don't load tabs until selected" by default -- VERIFIED
713269 Use Asynchronous Favicons API for PlacesUtils.jsm -- RESOLVED
713287 Animation for closing the last tab has a slight delay near the end when the tab bar overflows -- RESOLVED
713642 Replace all old synchronous favicons calls in the codebase -- RESOLVED
715402 Wait until chrome is painted before executing code not critical to making the initial window visible -- RESOLVED
716108 [New Tab Page] “Connecting…” should not briefly flicker in the tab title when a new tab is opened -- RESOLVED
718228 tab close transition to transparent is too fast -- RESOLVED
720311 nsFormHistory.js opens formhistory.sqlite on shutdown in order to close it -- RESOLVED
722188 mozilla::storage::Connection::BeginTransactionAs hangs for > 20 seconds waiting for frecency update -- RESOLVED
722242 Avoid thread contention on idle maintenance -- RESOLVED
722332 add async initialization API to nsIBrowserSearchService -- RESOLVED
722368 Report slow SQL created from dynamic strings to Telemetry -- RESOLVED
723611 Browser hung while trying to vacuum -- RESOLVED
726125 Certificate of a signed extension is validated on each startup -- VERIFIED
726334 nsFormFillController::mFocusedInput can keep nodes alive longer than needed -- RESOLVED
728141 Replace old synchronous favicons calls in browser -- RESOLVED
728143 Replace old synchronous favicons calls in Places tests -- RESOLVED
728168 Replace old synchronous favicons calls in feeds -- RESOLVED
728174 Replace old synchronous favicons calls in the bookmarks HTML import -- RESOLVED
728230 Adding a bookmark and opening a new window and closing the old one causes runtime leaks -- RESOLVED
728749 avoid using nsIURILoader in contentAreaUtils.js openURL, when possible -- RESOLVED
729330 Addon-manager jank: RELEASE SAVEPOINT 'default' is #1 main thread SQL query >100ms on nightly -- RESOLVED
729656 Animated Personas cause unexpectedly high CPU usage -- RESOLVED
729777 Eradicate localStorage from about: pages -- RESOLVED
731942 Replace old synchronous favicons calls in the Toolkit external content handler dialog -- RESOLVED
732583 [meta] Implement Australis tab shape & styling -- RESOLVED
735697 Close old connections when switching to/from private mode -- RESOLVED
739217 Replace codebase usage of synchronous isVisited with asynchronous isURIVisited -- RESOLVED
739218 Stop using nsIGlobalHistory2 -- RESOLVED
739219 Remove nsIBrowserHistory P2 RESOLVED
740468 Replace old synchronous favicons calls in the bookmarks export service -- VERIFIED
743877 tab switching shouldn't occur off a timeout -- RESOLVED
744152 [Page Thumbnails] Capture thumbnails only for the selected tab -- RESOLVED
744388 [Page Thumbnails] implement a custom storage, don't use the file cache -- VERIFIED
745744 Geolocation doorhanger might cause zombie compartments because it keeps callbacks alive -- RESOLVED
750454 FUEL causes lots of leaks until shutdown, can also cause 10+minute shutdown times -- RESOLVED
752376 Avoid calling scrollbox.ensureElementIsVisible() if the tab strip doesn't overflow to prevent layout flushes -- RESOLVED
752486 Calling gFormSubmitObserver.panelIsOpen() causes layout flushes -- RESOLVED
752496 gIdentityHandler.setMode() causes layout flushes -- RESOLVED
752868 Outdated locales aren't being removed from extensions.sqlite, causing bad performance -- RESOLVED
752918 Convert expensive SVG masks to clip-paths -- RESOLVED
753127 Required: telemetry for tab switching speed -- RESOLVED
753157 slow timeout handlers in search.xml delay startup -- RESOLVED
753448 [New Tab Page] preload newtab pages in the background and swap them in when opening a new tab -- RESOLVED
756313 Don't load homepage URI before first paint -- RESOLVED
760036 nsIBrowserSearchService should load metadata asynchronously -- RESOLVED
762094 [Page Thumbnails] remove file cache fallback -- RESOLVED
764971 Do not show the throbber and the "Connecting..." text for chrome pages -- RESOLVED
765411 about:home loading performance optimizations -- RESOLVED
772484 extension check dialog is annoying and can effectively hang the Firefox process -- RESOLVED
774811 Thumbnail_capture causes 125ms of jank during load of webgl aquarium. -- RESOLVED
779298 shutdownduration is not reported -- RESOLVED
779618 [Page Thumbnails] make tabbrowser use the thumbnail service -- RESOLVED
781588 URLBarSetURI takes about 63ms -- RESOLVED
781973 Use filepicker's open() instead of the obsolete show() in /browser/* -- RESOLVED
783103 Avoid layout flush from isElementVisible when attempting to focus the URL bar or search bar -- RESOLVED
789975 Extremely long pause while collecting telemetry information on the main thread -- RESOLVED
790213 Measure page load time with FX_ Telemetry -- RESOLVED
790489 "Restore previous session" in about:home can flash visible on load -- RESOLVED
790882 [New Tab Page] Speculatively open connections for sites when hovering them -- RESOLVED
791670 [New Tab Page] enable new tab page preloading by default -- RESOLVED
791776 Main thread IO in UIC_startSearch() -- RESOLVED
804968 Adjusting the height of the awesomebar results popup requires too many layout flushes -- RESOLVED
809056 reduce thumbnailing impact when there are no thumbnail service consumers -- RESOLVED
810149 Never recursively scan addon directories on startup -- RESOLVED
814505 Firefox hangs and unresponsive script dialog appears when installing large unpacked addon -- VERIFIED
824433 Bookmarks backup takes a long time to write out on shutdown -- RESOLVED
830209 Sqlite.jsm should handle transactions off main thread -- RESOLVED
830423 Avoid repeated execution of expensive daysOfHistory query -- RESOLVED
830694 [OS.File] Use zero-copy transfer between workers -- RESOLVED
838821 don't use file.exists() when not necessary (browser/components) -- RESOLVED
843853 Newtab page slows down tab-open animation -- RESOLVED
846921 Add telemetry for per-addon details -- RESOLVED
848358 Add talos regression test for tab animation smoothness -- RESOLVED
850163 TabOpen animation regressed with the landing of bug 844466 -- RESOLVED
853388 Convert XPIProvider.jsm from sqlite to JSON -- VERIFIED
853389 Convert AddonRepository.jsm from sqlite to JSON -- RESOLVED
853549 Remove main-thread I/O from password manager P1 VERIFIED
865387 [OS.File] Read-ahead flag for Linux -- RESOLVED
876002 Remove nsIFormHistory2 so no synchronous form history code remains -- RESOLVED
887965 AddonUpdateChecker timeout of two minutes is too long -- RESOLVED
889154 Move the addition of the MozApplicationManifest event listener to delayedStartup -- RESOLVED
894595 [Session Restore] e10s-style session restore -- RESOLVED
916076 [OS.File] Add telemetry for jank in OS.File.writeAtomic -- RESOLVED

119 Total; 0 Open (0%); 110 Resolved (92.44%); 9 Verified (7.56%);


Changed in the last week.

Full Query
ID Summary Priority Status
386396 investigate if we can push filtering down into a sql query, instead of filtering at FilterResultSet() P3 REOPENED
484928 improve efficiency of IsVisited checks to speed up link coloring P3 NEW
486408 Firefox "Applications" preference pane is really slow to load; does 2x the work it realy needs to; blocks UI thread on disk access -- NEW
490714 Asynchronous API for opening container query nodes P3 NEW
499985 Sorting of query results should be done entirely in SQL P3 NEW
519514 [meta] Add an asynchronous bookmarking API P3 NEW
521264 don't use file.exists() when not necessary -- REOPENED
530236 nsNavHistoryFolderResultNode sorting should be done entirely in SQL P3 NEW
551427 Whole browser should not hang while download file is built/scanned -- NEW
593680 [meta] Tab animation perf issues P5 NEW
628315 Bookmark sync: use SQL for all read operations -- NEW
630015 some of the text typed in find bar doesn't show up while page is loading -- NEW
648789 Opening new tab causes makes tab overflow scroll buttons appear momentarily (flicker) if New Tab button isn't placed right after tabs -- NEW
662397 Reorder xul.dll based on startup -- NEW
672284 Consider bypassing safebrowsing checks on Session restore P5 REOPENED
684646 Detect Common performance problems and warn user -- NEW
699820 [meta] Eradicate Storage main-thread synchronous API users from the codebase P3 NEW
702668 CPU at 100% when trying to open http://pl.wikipedia.org/w/index.php?title=Plik%3AMoscow_Metro%2C_Kievskaya_station.jpg&filetimestamp=20050127160901 -- NEW
704025 Replace "buckets-and-sampling" frecency algorithm with "exponential decay" algorithm P3 NEW
709181 first doorhanger after startup opens slowly -- NEW
711465 Reconsider DOM session storage behavior -- NEW
713220 Page scrolling lag on heavy js site -- UNCONFIRMED
715592 Postpone events that may cause pauses when user has indicated immersive modes (fullscreen etc) -- NEW
715612 creating the DOM for hidden tabs slows down browser startup -- NEW
718232 transition from maximized to full screen mode should hide toolbar before re-arranging it. -- NEW
720384 scroll restoration happens far too late -- NEW
721468 Cmd+R causes a js event handler to be run which takes more than 100ms -- NEW
725374 pinwheel for any place page on atlasobscura.com -- NEW
728407 [Meta] Runtime leaks caused by chrome -- NEW
735690 Idle browser (no pages showing) still uses a small amount of CPU -- NEW
742594 [Page Thumbnails] Large jank soon after switching tabs -- NEW
779960 Don't wait for the mouse pointer to rest before revealing the statuspanel when hovering a link P5 NEW
793018 Resizing sidebar is choppy -- NEW
794528 Excessive blog flair on specific site kills browser perf -- NEW
808104 Speculatively connect to the homepage before opening the first window P3 NEW
816607 SessionStore closes all tabs one by one, triggering synchronous reflow each time -- REOPENED
819063 [meta] Shutdown faster -- NEW
827428 Clicking "Show all downloads" can cause main-thread IO while loading icons -- NEW
837989 Use IOUtils for gLastOpenDirectory -- NEW
848132 Wait before declaring the profile is locked P3 NEW
865181 [Storage] Remove unnecessary mutexes from implementation of mozIStorageAsyncConnection P3 NEW
884455 Back button sliding janks -- NEW
926160 Support enough features in ArchiveReader to extract xpi -- NEW
943830 Firefox could throw away form (and storage?) data for tabs earlier than URLs and Titles -- NEW
991003 Session Restore and XUL persistence don't work together due to the order windows are restored -- REOPENED
995736 Delayed tab titles get temporarily replaced with "Connecting…" upon selection -- NEW

46 Total; 46 Open (100%); 0 Resolved (0%); 0 Verified (0%);


Currently open.

Full Query
ID Summary Priority Status
386396 investigate if we can push filtering down into a sql query, instead of filtering at FilterResultSet() P3 REOPENED
484928 improve efficiency of IsVisited checks to speed up link coloring P3 NEW
486408 Firefox "Applications" preference pane is really slow to load; does 2x the work it realy needs to; blocks UI thread on disk access -- NEW
490714 Asynchronous API for opening container query nodes P3 NEW
499985 Sorting of query results should be done entirely in SQL P3 NEW
519514 [meta] Add an asynchronous bookmarking API P3 NEW
521264 don't use file.exists() when not necessary -- REOPENED
530236 nsNavHistoryFolderResultNode sorting should be done entirely in SQL P3 NEW
551427 Whole browser should not hang while download file is built/scanned -- NEW
593680 [meta] Tab animation perf issues P5 NEW
628315 Bookmark sync: use SQL for all read operations -- NEW
630015 some of the text typed in find bar doesn't show up while page is loading -- NEW
648789 Opening new tab causes makes tab overflow scroll buttons appear momentarily (flicker) if New Tab button isn't placed right after tabs -- NEW
662397 Reorder xul.dll based on startup -- NEW
672284 Consider bypassing safebrowsing checks on Session restore P5 REOPENED
684646 Detect Common performance problems and warn user -- NEW
699820 [meta] Eradicate Storage main-thread synchronous API users from the codebase P3 NEW
702668 CPU at 100% when trying to open http://pl.wikipedia.org/w/index.php?title=Plik%3AMoscow_Metro%2C_Kievskaya_station.jpg&filetimestamp=20050127160901 -- NEW
704025 Replace "buckets-and-sampling" frecency algorithm with "exponential decay" algorithm P3 NEW
709181 first doorhanger after startup opens slowly -- NEW
711465 Reconsider DOM session storage behavior -- NEW
713220 Page scrolling lag on heavy js site -- UNCONFIRMED
715592 Postpone events that may cause pauses when user has indicated immersive modes (fullscreen etc) -- NEW
715612 creating the DOM for hidden tabs slows down browser startup -- NEW
718232 transition from maximized to full screen mode should hide toolbar before re-arranging it. -- NEW
720384 scroll restoration happens far too late -- NEW
721468 Cmd+R causes a js event handler to be run which takes more than 100ms -- NEW
725374 pinwheel for any place page on atlasobscura.com -- NEW
728407 [Meta] Runtime leaks caused by chrome -- NEW
735690 Idle browser (no pages showing) still uses a small amount of CPU -- NEW
742594 [Page Thumbnails] Large jank soon after switching tabs -- NEW
779960 Don't wait for the mouse pointer to rest before revealing the statuspanel when hovering a link P5 NEW
793018 Resizing sidebar is choppy -- NEW
794528 Excessive blog flair on specific site kills browser perf -- NEW
808104 Speculatively connect to the homepage before opening the first window P3 NEW
816607 SessionStore closes all tabs one by one, triggering synchronous reflow each time -- REOPENED
819063 [meta] Shutdown faster -- NEW
827428 Clicking "Show all downloads" can cause main-thread IO while loading icons -- NEW
837989 Use IOUtils for gLastOpenDirectory -- NEW
848132 Wait before declaring the profile is locked P3 NEW
865181 [Storage] Remove unnecessary mutexes from implementation of mozIStorageAsyncConnection P3 NEW
884455 Back button sliding janks -- NEW
926160 Support enough features in ArchiveReader to extract xpi -- NEW
943830 Firefox could throw away form (and storage?) data for tabs earlier than URLs and Titles -- NEW
991003 Session Restore and XUL persistence don't work together due to the order windows are restored -- REOPENED
995736 Delayed tab titles get temporarily replaced with "Connecting…" upon selection -- NEW

46 Total; 46 Open (100%); 0 Resolved (0%); 0 Verified (0%);


Currently open and unowned.

Full Query
ID Summary Priority Status
386396 investigate if we can push filtering down into a sql query, instead of filtering at FilterResultSet() P3 REOPENED
484928 improve efficiency of IsVisited checks to speed up link coloring P3 NEW
486408 Firefox "Applications" preference pane is really slow to load; does 2x the work it realy needs to; blocks UI thread on disk access -- NEW
490714 Asynchronous API for opening container query nodes P3 NEW
499985 Sorting of query results should be done entirely in SQL P3 NEW
519514 [meta] Add an asynchronous bookmarking API P3 NEW
521264 don't use file.exists() when not necessary -- REOPENED
530236 nsNavHistoryFolderResultNode sorting should be done entirely in SQL P3 NEW
551427 Whole browser should not hang while download file is built/scanned -- NEW
593680 [meta] Tab animation perf issues P5 NEW
628315 Bookmark sync: use SQL for all read operations -- NEW
630015 some of the text typed in find bar doesn't show up while page is loading -- NEW
648789 Opening new tab causes makes tab overflow scroll buttons appear momentarily (flicker) if New Tab button isn't placed right after tabs -- NEW
662397 Reorder xul.dll based on startup -- NEW
672284 Consider bypassing safebrowsing checks on Session restore P5 REOPENED
684646 Detect Common performance problems and warn user -- NEW
699820 [meta] Eradicate Storage main-thread synchronous API users from the codebase P3 NEW
702668 CPU at 100% when trying to open http://pl.wikipedia.org/w/index.php?title=Plik%3AMoscow_Metro%2C_Kievskaya_station.jpg&filetimestamp=20050127160901 -- NEW
704025 Replace "buckets-and-sampling" frecency algorithm with "exponential decay" algorithm P3 NEW
709181 first doorhanger after startup opens slowly -- NEW
711465 Reconsider DOM session storage behavior -- NEW
713220 Page scrolling lag on heavy js site -- UNCONFIRMED
715592 Postpone events that may cause pauses when user has indicated immersive modes (fullscreen etc) -- NEW
715612 creating the DOM for hidden tabs slows down browser startup -- NEW
718232 transition from maximized to full screen mode should hide toolbar before re-arranging it. -- NEW
720384 scroll restoration happens far too late -- NEW
721468 Cmd+R causes a js event handler to be run which takes more than 100ms -- NEW
725374 pinwheel for any place page on atlasobscura.com -- NEW
728407 [Meta] Runtime leaks caused by chrome -- NEW
735690 Idle browser (no pages showing) still uses a small amount of CPU -- NEW
742594 [Page Thumbnails] Large jank soon after switching tabs -- NEW
779960 Don't wait for the mouse pointer to rest before revealing the statuspanel when hovering a link P5 NEW
793018 Resizing sidebar is choppy -- NEW
794528 Excessive blog flair on specific site kills browser perf -- NEW
808104 Speculatively connect to the homepage before opening the first window P3 NEW
816607 SessionStore closes all tabs one by one, triggering synchronous reflow each time -- REOPENED
819063 [meta] Shutdown faster -- NEW
827428 Clicking "Show all downloads" can cause main-thread IO while loading icons -- NEW
837989 Use IOUtils for gLastOpenDirectory -- NEW
848132 Wait before declaring the profile is locked P3 NEW
865181 [Storage] Remove unnecessary mutexes from implementation of mozIStorageAsyncConnection P3 NEW
884455 Back button sliding janks -- NEW
926160 Support enough features in ArchiveReader to extract xpi -- NEW
943830 Firefox could throw away form (and storage?) data for tabs earlier than URLs and Titles -- NEW
991003 Session Restore and XUL persistence don't work together due to the order windows are restored -- REOPENED
995736 Delayed tab titles get temporarily replaced with "Connecting…" upon selection -- NEW

46 Total; 46 Open (100%); 0 Resolved (0%); 0 Verified (0%);