Performance/Snappy/Dashboard

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Snappy Dashboard

Resolved in the last 3 weeks.

Bugzilla query error

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Fixed in last 3 weeks

Full Query
ID Summary Priority Status
49141 New window performance P2 RESOLVED
198964 Enable smooth scrolling by default -- VERIFIED
206438 Smooth scrolling should use the 'smoothwheel' algorithm -- VERIFIED
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
539356 Replace Invalidate() calls in reflow with display list analysis -- 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
590422 Consider getting rid of the delay line filter stuff in timer thread -- RESOLVED
593614 [Meta] Site rendering is very HDD intensive, especially after cold start(due to font enumeration) -- RESOLVED
598482 Hook up invalidation flushing to the refresh driver and make all painting asynchronous -- RESOLVED
598873 Tracking: Off-main-thread compositing -- RESOLVED
613588 Replace livemarks with asynchronous load-on-demand livemarks (was: Livemarks cause synchronous I/O during txul) -- RESOLVED
632556 Run nsIFile::Reveal/Launch asynchronously -- RESOLVED
633427 Clearing cookies launches instance of plugin-container for each plugin installed -- RESOLVED
641025 Incremental GC -- RESOLVED
642257 Flash video in background tab degrades FF rendering performance -- VERIFIED
644744 Whitelist io that must happen before UI is shown, warn on everything else -- 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
675015 Suppress synthetic mouse events due to scrolling until the scroll is complete -- RESOLVED
675539 Automatically unload (discard/hibernate) longly unused tabs to free resources / when running out of memory -- RESOLVED
675866 Meta: scrolling complex pages like Engadget is consistently slower and jerkier than the competition -- RESOLVED
679026 Add gcMallocBytes per compartment -- RESOLVED
681201 [meta] Not-yet-restored empty tabs take more memory than they should -- RESOLVED
682602 setupSearchEngine in about:home shows up in startup profiles -- RESOLVED
685516 Mitigate flickering problems when inserting images into the DOM that have no decoded data -- RESOLVED
686805 Do incremental zip decompression in our linker -- RESOLVED
689623 layout needs to provide information on which images are visible or likely to be visible -- VERIFIED
690623 NHL website's use of -moz-linear-gradient causes jerky scrolling -- RESOLVED
692255 Find a way to get rid of prefetch files on Windows for faster startup -- VERIFIED
694014 Add telemetry for paint time -- RESOLVED
695399 Remove calls to nsICacheSession::openCacheEntry on the main thread P2 RESOLVED
695829 Add telemetry probes to measure how long it takes for us to switch in and out of private browsing mode -- RESOLVED
696399 close connections and misc cleanups in dom -- RESOLVED
697377 Form Autocomplete should use asynchronous storage API -- RESOLVED
697988 We should use weak references to observers in nsDOMStorage.cpp -- RESOLVED
699051 Track slow sql queries on main thread + send them in via telemetry -- RESOLVED
699331 Investigate name enumeration time at startup -- 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
699918 Add a Profiler XPCOM Module -- RESOLVED
699974 scripts evaluated from plugins may prevent the slow script dialog from ever appearing -- 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
702032 investigate mega blobs in the cycle collector graph -- RESOLVED
702251 Decommit unused arenas in the background -- RESOLVED
702344 Squash main thread PermissionManager sqlite outputs (moz_hosts table) -- RESOLVED
702463 Make smooth scrolling use the refresh driver notifications instead of using its own timer -- RESOLVED
702559 Create a pure-async mozIStorageAsyncConnection -- RESOLVED
702813 Pages with many DOM objects which don't live in the document can cause multi-second CC pauses -- 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
703100 remove the existing text-run word cache and replace with a simpler and more efficient scheme -- RESOLVED
705258 Hang in gfxDWriteFontEntry::GetFontTable -- RESOLVED
705582 add async purplebuffer-cleanup phase to CC? -- RESOLVED
705594 optimize system font fallback -- RESOLVED
705597 about:blank subframe entries in session restore make browser slow -- RESOLVED
705845 Add telemetry for size of values stored in localStorage -- RESOLVED
706164 [CC] Add telemetry for CC forcing GC -- RESOLVED
706179 Async CSS animation -- RESOLVED
706340 add gfxinfo data to telemetry data -- RESOLVED
706647 measure plugin shutdown with telemetry -- RESOLVED
707162 regression in GC scheduling between Firefox 9 and 10? -- RESOLVED
707800 Add more sampler labels -- RESOLVED
708159 Avoid unnecessary work done by multi-reporters nsMemoryReporterManager::GetExplicit -- 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
709971 reflow telemetry -- RESOLVED
710176 Socket transport service thread pegs the CPU spinning to send data on a SSL socket that is blocking waiting for certificate validation to finish P1 RESOLVED
710372 [meta] [snappy] smooth scrolling -- RESOLVED
710895 Port IE profile migrator to JS -- RESOLVED
710935 Measure lag in handling user input -- RESOLVED
711193 turn on "don't load tabs until selected" by default -- VERIFIED
711221 Rename the private-browsing project branch to "profiling" P1 RESOLVED
711447 Close connection in nsPermissionManager -- RESOLVED
711970 Use openUnsharedDatabase in localStorage SQLite -- RESOLVED
712109 Implement non-fatal chromehang by turning on frame-pointers on a branch -- RESOLVED
712735 [CC] Don't add JS holders with no gray children as XPConnect roots -- RESOLVED
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
715308 Decode ::Draw()'n images before other images -- RESOLVED
715380 Provide telemetry on timers created by webpages -- RESOLVED
715402 Wait until chrome is painted before executing code not critical to making the initial window visible -- RESOLVED
715953 add telemetry for how many background timeouts are scheduled within 30seconds -- RESOLVED
716014 Investigate if we could use CompartmentGC more often -- RESOLVED
716108 [New Tab Page] “Connecting…” should not briefly flicker in the tab title when a new tab is opened -- RESOLVED
716140 Multithreaded image decoding -- VERIFIED
717711 telemetry for time spent in between CCs -- RESOLVED
718228 tab close transition to transparent is too fast -- RESOLVED
719492 Telemetry for time spent in between GCs -- RESOLVED
719511 scriptfactory doesn't reboot slaves -- RESOLVED
719530 Cleopatra front-end improvements -- RESOLVED
719618 Craft a no-outside-network mode for peptest -- RESOLVED
720311 nsFormHistory.js opens formhistory.sqlite on shutdown in order to close it -- RESOLVED
721336 Ban sync XMLHttpRequest with chrome privileges P2 RESOLVED
722033 Remove calls to synchronous openCacheEntry in nsHttpChannel P1 RESOLVED
722034 Cache entry check--CheckCache()--is done on the main thread, causing the main thread to wait on the cache service lock, which may be blocked on disk I/O P1 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
724878 Make nsPermissionManager input asynchronous -- RESOLVED
725700 Keyboard arrow keys and scrollbar buttons should have consistent scrolling distances -- VERIFIED
725768 BBP for ObjectHolders -- RESOLVED
725804 Don't add active network requests (XHR, WebSocket, EventSource) to CC graph -- RESOLVED
726125 Certificate of a signed extension is validated on each startup -- VERIFIED
726334 nsFormFillController::mFocusedInput can keep nodes alive longer than needed -- RESOLVED
726442 [meta] Run the CC less often by removing childless nodes from the purple buffer -- RESOLVED
728141 Replace old synchronous favicons calls in browser -- RESOLVED
728142 Replace old synchronous favicons calls in tabview -- 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
728294 Analyze cycle collection logs after test runs to detect leaks -- RESOLVED
728460 remove all childless nodes from the purple buffer before a CC -- RESOLVED
728749 avoid using nsIURILoader in contentAreaUtils.js openURL, when possible -- RESOLVED
729133 preconnect http sessions before cache lookup -- RESOLVED
729171 Modify AMO review policy to check for addons that disable incremental GC -- RESOLVED
729330 Addon-manager jank: RELEASE SAVEPOINT 'default' is #1 main thread SQL query >100ms on nightly -- RESOLVED
729536 Deadlock by xul!nsHttpConnectionMgr::Shutdown -- RESOLVED
729656 Animated Personas cause unexpectedly high CPU usage -- RESOLVED
729760 GC: Incremental sweeping of shapes and types -- RESOLVED
729777 Eradicate localStorage from about: pages -- RESOLVED
730546 Readability extension causes memory leaks, with the system compartment growing rapidly -- RESOLVED
731741 Need a way to decide if we should _exit(0) early or not -- RESOLVED
731942 Replace old synchronous favicons calls in the Toolkit external content handler dialog -- RESOLVED
732173 poison write during shutdown in a debug build -- RESOLVED
732368 Ensure idle service doesn't fire idle events after xpcom-shutdown -- RESOLVED
732583 [meta] Implement Australis tab shape & styling -- RESOLVED
733277 Prevent firing timers from lock contention with the main thread -- RESOLVED
734015 Slow down parsing of web pages in background tabs. -- RESOLVED
735014 GCs triggered from pagehide can interfere with the loading of another web page -- RESOLVED
735099 Re-enable incremental GC on desktop platforms -- RESOLVED
735342 CanSkip for unoptimizable nodes held live by a binding manager -- RESOLVED
735550 unmark gray objects held alive by nsXBLDocGlobalObject of skippable nsXBLDocumentInfo -- RESOLVED
735697 Close old connections when switching to/from private mode -- RESOLVED
736299 IonMonkey: Add a frame pointer for profiling & debugging mode. -- RESOLVED
736563 Mark global objects black if they belong to an active window -- RESOLVED
736763 CanSkipInCC when adding roots -- RESOLVED
737060 don't traverse a nsXULTemplateBuilder with an observed document -- RESOLVED
737075 unmark gray observers implemented in JS held by observer service -- RESOLVED
737758 Improve bug 206438 to also work on OSX and Linux -- RESOLVED
738820 Page load is very slow on Google Presentation -- RESOLVED
739217 Replace codebase usage of synchronous isVisited with asynchronous isURIVisited -- RESOLVED
739218 Stop using nsIGlobalHistory2 -- RESOLVED
739219 Remove nsIBrowserHistory P2 RESOLVED
740185 Mark safe JS context black -- RESOLVED
740468 Replace old synchronous favicons calls in the bookmarks export service -- VERIFIED
741678 Opening of offline cache entry for write delays reading of entry from the nomal cache and/or from the net -- RESOLVED
743112 JS GC: Incremental deferred release -- RESOLVED
743178 Some eventlistener keeps documents alive -- VERIFIED
743877 tab switching shouldn't occur off a timeout -- RESOLVED
744126 [Security Review][Action Item]Snappy Symbolic Server - Code Review -- 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
747675 Investigate if max forgetSkippable times could be decreased -- RESOLVED
750417 closing a tab reflows the entire tab bar during the animation, making the animation crappy -- RESOLVED
750454 FUEL causes lots of leaks until shutdown, can also cause 10+minute shutdown times -- RESOLVED
750583 FUEL gShutdown array uses an n^2 algorithm to empty the array, causing huge 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
753813 Cache is disabled if you have too many old cache directories to delete -- VERIFIED
754201 Latency when switching tabs with Firebug due to GC -- RESOLVED
754495 represent an entire compartment as a single CC node when tearing down a page -- RESOLVED
755604 Incrementalize JSCompartment::markTypes -- RESOLVED
756313 Don't load homepage URI before first paint -- RESOLVED
759780 nsAlertService::Init/Growl does main thread IO blocking for 2 seconds -- RESOLVED
760036 nsIBrowserSearchService should load metadata asynchronously -- RESOLVED
761393 Cache gfxPatterns for gradients -- RESOLVED
761397 [Azure][D2D] Reduce churn on surface creation for PushGroup/PopGroup/Clipping -- RESOLVED
762094 [Page Thumbnails] remove file cache fallback -- RESOLVED
763116 Need to automate regular symbolication of chrome hang reports -- RESOLVED
764971 Do not show the throbber and the "Connecting..." text for chrome pages -- RESOLVED
765411 about:home loading performance optimizations -- RESOLVED
765665 nsCacheService::GetCacheIOTarget takes cache service lock -- RESOLVED
767159 remove synchronous DNS resolution in nsSOCKSIOLayer.cpp -- RESOLVED
767209 Consider changing GC slice time, or making it dynamic -- RESOLVED
768775 Gradient perf is unusably slow on test case -- RESOLVED
770317 create a xperf-based mainthread io tracker -- RESOLVED
770605 poison write during shutdown in release builds too -- RESOLVED
772264 Flag nsIDNSService.resolve -- RESOLVED
772484 extension check dialog is annoying and can effectively hang the Firefox process -- RESOLVED
773518 netwerk\cache\nsDeleteDir.cpp should lower IO prioritization on Windows Vista+ and OS X -- RESOLVED
774146 Get more detail on reason for DISK_CACHE_CORRUPT failures -- RESOLVED
774444 Compare prefetch performance for profiles recorded with warm startup vs cold -- VERIFIED
774811 Thumbnail_capture causes 125ms of jank during load of webgl aquarium. -- RESOLVED
776416 Remove exceptions to 5MB quota rule in localStorage -- RESOLVED
777032 use timeBeginPeriod when needed to do high resolution profiling -- RESOLVED
777266 Official "Search by Image (by Google)" v1.0.6 add-on causes high CPU utilization -- RESOLVED
777328 Gather telemetry data for how much cache corruption reduction plan would help -- RESOLVED
777397 YSlow possibly causing frequent Firefox hangs -- RESOLVED
777919 Free LifoAlloc chunks on background thread -- RESOLVED
778340 Tab tray button action should be fired on mousedown instead of command -- RESOLVED
778856 deploy mozprofilerprobe.mof to windows 7 machines P2 RESOLVED
779183 GC: Incremental sweeping of atoms table -- RESOLVED
779298 shutdownduration is not reported -- RESOLVED
779618 [Page Thumbnails] make tabbrowser use the thumbnail service -- RESOLVED
781588 URLBarSetURI takes about 63ms -- RESOLVED
781732 Severe jank in nsWindowsSystemProxySettings::getPACURI -- 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
783791 When re-launching Firefox into maximized window, tabs start out below Firefox button and then shift up to the titlebar -- RESOLVED
785493 Mark the script of live nsXULPrototypeScript black during GC -- RESOLVED
785909 FileMediaResource::Open does blocking IO on the main thread P1 RESOLVED
786421 Extreme lag during text input on twitter/facebook/other web forms -- VERIFIED
787576 Refine telemetry data for how much cache corruption reduction plan would help -- RESOLVED
788794 Final basic layers paint goes down cairo slow path on gdi -- RESOLVED
789932 nsExternalAppHandler downloads files on the main thread -- VERIFIED
789936 Cache reduction telemetry data to ignore doom list to get valid telemetry data -- RESOLVED
789945 Save preferences asynchronously -- RESOLVED
789975 Extremely long pause while collecting telemetry information on the main thread -- RESOLVED
790213 Measure page load time with FX_ Telemetry -- RESOLVED
790338 GC: Sweep compartments in groups -- 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
792199 Only decode visible images immediately when switching to a tab -- RESOLVED
792296 popup.xml's state getter should try to avoid flushing frames -- RESOLVED
792438 Make sure that we load stylesheets and scripts with a higher priority than images -- RESOLVED
792797 jank when opening blogspot webpage hangs browser UI -- RESOLVED
792922 Tab opening performance -- RESOLVED
793491 4 second hang in ScriptAnalysis::addTypeBarrier opening spreadsheet from Google Drive -- VERIFIED
794246 Opening (book|feed)mark folder from Bookmarks Toolbar becomes choppy quickly. -- VERIFIED
800031 Include paint time in tab switch telemetry -- RESOLVED
800859 Make MozAfterPaint fire after composition -- RESOLVED
801918 Frequent unnecessary invalidation of the entire content area while scrolling -- RESOLVED
802871 Meta: SVG snappy bugs -- RESOLVED
803376 Stop doing TRANSPLANT GCs -- RESOLVED
804968 Adjusting the height of the awesomebar results popup requires too many layout flushes -- RESOLVED
805591 Add UI to be shown when plugin is unresponsive -- RESOLVED
805831 Add additional short lived gradient cache for border corners -- RESOLVED
807021 Move LocalStorage writes off the main thread -- VERIFIED
809056 reduce thumbnailing impact when there are no thumbnail service consumers -- RESOLVED
810149 Never recursively scan addon directories on startup -- RESOLVED
810275 Scrolling on some sites isn't smooth -- VERIFIED
811891 Only sync decode once per image. -- RESOLVED
814505 Firefox hangs and unresponsive script dialog appears when installing large unpacked addon -- VERIFIED
816642 Avoid fragmenting cache files (use fallocate) -- RESOLVED
816656 [Shutdown] Startup cache slows shutdown with < 10 sec uptime -- RESOLVED
816784 Lots of time spent in WindowDestroyedEvent::Run/js::NukeCrossCompartmentWrappers when closing tabs/windows -- RESOLVED
818296 [Shutdown] js::NukeCrossCompartmentWrappers takes up to 300ms on shutdown. Avoid doing it for optimized shutdown -- VERIFIED
818739 Don't run CC during shutdown -- RESOLVED
819454 [Shutdown] Avoid js::NukeCrossCompartmentWrappers in SDK on shutdown P1 RESOLVED
820113 Slow and spikes after load lot of images -- RESOLVED
820378 Try to postpone triggering CC if we're in middle of GC handling -- RESOLVED
821371 Add telemetry for prep work done for cycle collection -- RESOLVED
822849 Timer based CC occurring on shutdown -- RESOLVED
824433 Bookmarks backup takes a long time to write out on shutdown -- RESOLVED
824658 Long-lived loop decoding a PNG -- RESOLVED
826422 Tiled gradients are slow to paint. They should only be painted once -- RESOLVED
827392 Reduce ForgetSkippable pause times -- RESOLVED
827976 Creating the hidden window lazily on non-Mac platforms -- RESOLVED
829952 Scrolling using some high-resolution-scroll aware touchpads feels slow -- RESOLVED
830209 Sqlite.jsm should handle transactions off main thread -- RESOLVED
830423 Avoid repeated execution of expensive daysOfHistory query -- RESOLVED
830600 Pasting in the URL can be extremely expensive (quadratic on the length of the pasted string) -- RESOLVED
830694 [OS.File] Use zero-copy transfer between workers -- RESOLVED
830765 Multi-second hang during CollectNewLoadedModules -- RESOLVED
836457 Don't start forgetSkippable/GC timer before first GC -- RESOLVED
836719 Perf review for FHR metrics/ -- RESOLVED
838210 get rid of some main-thread IO (mobile) -- RESOLVED
838758 Cache GradientStops instead of gfxPatterns -- RESOLVED
838821 don't use file.exists() when not necessary (browser/components) -- RESOLVED
839822 Perf review for FHR healthreport/ -- RESOLVED
841323 Perf review for FHR datareporting/ -- RESOLVED
841931 Poor performance in d3.js demo -- RESOLVED
842852 LocalStorage performance improvements -- RESOLVED
843853 Newtab page slows down tab-open animation -- RESOLVED
844947 Choppy scrolling on Firefox Partners website (and many others) on Mac Retina in scaled (not max) resolution, CSS transformations get choppy - everything gets redrawn -- RESOLVED
845147 Janky scrolling on pages with many small images as a result of bug 689623 -- RESOLVED
846921 Add telemetry for per-addon details -- RESOLVED
848358 Add talos regression test for tab animation smoothness -- RESOLVED
850065 Sliding views incremental cycle collection -- RESOLVED
850163 TabOpen animation regressed with the landing of bug 844466 -- RESOLVED
850208 Watching panic cat (aka jank cat) renders browser unresponsive -- RESOLVED
851641 Intermittent components/satchel/test/test_form_autocomplete_with_list.html | Exited with code 1 during test run | application crashed [@ nsAutoLayoutPhase::Enter()] -- RESOLVED
852467 nsDisableOldMaxSmartSizePrefEvent runs on the gecko main thread, blocks for long periods of time -- 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
863122 add time since launch and time since system startup to chromehang data -- RESOLVED
865387 [OS.File] Read-ahead flag for Linux -- RESOLVED
867432 Remove nsIX509Cert.verifyForUsage -- RESOLVED
867473 remove nsIX509Cert.getChain (and nsIX509Cert.issuer) P1 RESOLVED
872981 Print a warning whenever something attempts to store more than 4kb of preferences -- RESOLVED
873640 Read-ahead not actually being used on omni.ja -- RESOLVED
875125 Parse javascript off main thread to benefit from delay between parsing & execution -- RESOLVED
876002 Remove nsIFormHistory2 so no synchronous form history code remains -- RESOLVED
880864 User dictionary (persdict.dat) read on main thread -- 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
902195 Evernote add-ons polls 'evernoteclips' directory in the profile once per second -- RESOLVED
911246 Enable incremental cycle collection by default -- RESOLVED
916076 [OS.File] Add telemetry for jank in OS.File.writeAtomic -- RESOLVED
928340 Move buffering check from NetUtil.asyncCopy to nsIAsyncStreamCopier -- RESOLVED
950240 OCSP response is fetched even when the same valid Good OCSP response has been stapled -- RESOLVED

321 Total; 0 Open (0%); 295 Resolved (91.9%); 26 Verified (8.1%);


Changed in the last week.

Bugzilla query error

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Full Query
ID Summary Priority Status
420534 dump() on OS X ends up in /var/log/system.log -- NEW
421128 Independent windows/tabs should not starve each other for network connections P3 NEW
422321 Components.utils.import() should inject exported objects into scope as lazy getters -- NEW
435628 100% CPU on Progressive JPEG & Interlaced PNG when gfx.color_management (qcms) is enabled 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
513149 Speed up css parsing(Add telemetry probes to measure extent of problem) P3 NEW
519514 [meta] Add an asynchronous bookmarking API P3 NEW
521264 don't use file.exists() when not necessary -- REOPENED
535623 Improve hunspell's FileMgr implementation to reduce the I/O cost -- NEW
542144 package and ship already JIT'd chrome JavaScript -- NEW
551427 Whole browser should not hang while download file is built/scanned -- NEW
559729 Meta-bug: improve HTTP cache P3 NEW
572459 [meta] Tracking: Bad IO Patterns -- NEW
609042 Workers: Don't let events posted from workers drown the main thread -- NEW
611837 [meta] Meta: Don't fsync on startup -- NEW
627208 Preload startup cache -- NEW
628315 Bookmark sync: use SQL for all read operations -- NEW
629507 Make keyboard scrolling the same speed as scroll-arrow scrolling -- NEW
630015 some of the text typed in find bar doesn't show up while page is loading -- NEW
662397 Reorder xul.dll based on startup -- NEW
668653 Event loop telemetry -- NEW
670183 perhaps DOMOperationCallback should be more ambitious with its script-killing -- NEW
672284 Consider bypassing safebrowsing checks on Session restore P5 REOPENED
683284 [meta] Images suck the snap out of Firefox (memory, flicker, decode/discard heuristics) -- NEW
684646 Detect Common performance problems and warn user -- NEW
692979 Need more disk cache telemetry P5 NEW
694519 DOM mutation/web sockets combination can lag browser UI P5 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
703436 Firefox hung with CheckForSurface and ForEachFontInternal -- NEW
703668 Track caret responsiveness via telemetry -- NEW
706250 Many short unresponsive periods when loading The Daily What P5 NEW
706919 Investigate being able to measure when we're not meeting animation deadlines. -- NEW
707374 Add telemetry to measure svg decoding/rendering time -- NEW
707391 Categorize time away from event loop P3 NEW
709181 first doorhanger after startup opens slowly -- NEW
711465 Reconsider DOM session storage behavior -- NEW
711880 nsInputStreamChannel::OpenContentStream defeats DEFER_OPEN optimization for file streams by calling Available on the main thread P3 NEW
711881 nsXMLHttpRequest::Send defeats DEFER_OPEN optimization for file streams by calling Available on the main thread P3 NEW
711883 HttpBaseChannel::ExplicitSetUploadStream defeats DEFER_OPEN optimization for file streams by calling Available on the main thread P3 NEW
711884 nsPartialLocalFileInputStream::Init defeats DEFER_OPEN optimization for file streams by calling Seek on the main thread P3 NEW
713220 Page scrolling lag on heavy js site -- UNCONFIRMED
715376 implement per-page event queue, to allow timeout grouping/prioritization/etc P3 NEW
715378 Do cost accounting of setTimeouts to punish cpu hog background tabs P5 NEW
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
717561 Get rid of DOMParser::parseFromStream P3 NEW
717564 Get rid of nsISAXXMLReader::parseFromStream -- 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
720459 Janky scrolling at http://html5please.us/ -- NEW
721236 Concurrent GC marking -- NEW
721468 Cmd+R causes a js event handler to be run which takes more than 100ms -- NEW
722648 We should have an async version of nsIObserver -- NEW
725374 pinwheel for any place page on atlasobscura.com -- NEW
725851 Throttle/Coalesce Scroll events on OSX with the trackpad -- NEW
726174 fix slow-script dialog proper P3 NEW
728407 [Meta] Runtime leaks caused by chrome -- NEW
731026 Measure sources of jank during background tab pageload -- NEW
733293 High-resolution WebM video on YouTube stutters -- NEW
733617 add telemetry to determine sync document.load usage P5 NEW
733619 add telemetry to determine XSLT document() usage -- NEW
735690 Idle browser (no pages showing) still uses a small amount of CPU -- NEW
736074 The madvise(MADV_FREE) call we make in arena_run_dalloc to can take between 20%-30% of our time -- NEW
736144 Preload LocalStorage by blocking script tags P5 NEW
740008 [Mac] Opening a new window is slow (>0.5 sec) P3 NEW
740523 Mark likely-leaked windows and documents as black for most CCs -- NEW
742594 [Page Thumbnails] Large jank soon after switching tabs -- NEW
744100 Provide an async API for capturing the next redraw -- NEW
744470 Track phantom setTimeouts like slow sql P5 NEW
750892 window.assertLayout(callback,[reflow, flush, etc]) aid -- NEW
752630 Something(refresh driver?) causing a reduction in ctrl+tab drawing rate -- NEW
757812 Slow down async reflows in background tabs P5 NEW
757813 Slow down script evaluation in background tabs. P5 NEW
764983 Investigate if load event firing could be delayed in background tabs P5 NEW
766333 Adblock Plus causes significant pageload slowdown on a page with tens of thousands of images -- NEW
767158 remove synchronous DNS resolution in nsAuthSSPI.cpp P5 NEW
775698 [Tracking] Remove all synchronous (on the main thread) certificate validation and certificate database access P3 NEW
779960 Don't wait for the mouse pointer to rest before revealing the statuspanel when hovering a link P5 NEW
784565 nightly hangs in PREF_UnregisterCallback -- NEW
786486 Moving the cursor on an about:newtab thumbnail causes multiple repaints of the thumbnail -- NEW
786490 Moving the cursor from a submenu to the main Firefox menu causes the entire tabbar to repaint -- NEW
789573 [meta] Tab switching performance tracking bug -- NEW
792527 AlphaBoxBlur paints very slow -- UNCONFIRMED
793018 Resizing sidebar is choppy -- NEW
794528 Excessive blog flair on specific site kills browser perf -- NEW
798055 idle 'back' notification is expensive -- NEW
803582 Usage of OCSP fetching makes Firefox slow P3 NEW
807791 canvas/jquery huge jank from http://ocspreport.x509labs.com/ -- NEW
808104 Speculatively connect to the homepage before opening the first window P3 NEW
808838 3D CSS Periodic table demo is unusably slow in Firefox -- NEW
809043 Add support for off-main thread image encoding -- NEW
810022 Make nsCycleCollector::GCIfNeeded incremental somehow -- NEW
810127 CCLockedOut GCs are a top source of chrome hangs -- NEW
810163 meta:Reduce time between createTopLevelWindow and firstPaint -- NEW
811927 Don't use a temporary surface for inactive opacity surfaces if we don't need to -- NEW
819063 [meta] Shutdown faster -- NEW
822481 Loading XDA developers forum in a tab locks up entire Firefox -- NEW
824113 Excessive repainting when appending some content that isn't in the visible part of the page -- NEW
827428 Clicking "Show all downloads" can cause main-thread IO while loading icons -- NEW
832157 Browser considerable slowdown after reaching cache limit. P3 UNCONFIRMED
832694 Over invalidation of SVG with filters embedded via <object> while scrolling the Shadow DOM spec -- NEW
837989 Use IOUtils for gLastOpenDirectory -- NEW
842777 preload webappsstore.sqlite on first access to warm cache + use CHUNK_SIZE of 1meg P5 NEW
844251 Avoid using system wide GDI Lock causing large hangs -- NEW
846914 13 second Proxy freeze P3 NEW
848132 Wait before declaring the profile is locked P3 NEW
850894 Scrolling theverge.com is markedly slower than Chrome on OS X. Stutterson Firefox -- NEW
854394 Tune main-thread synchronous decodes for multithreaded image decoding -- NEW
856750 Frequent main-thread hangs in nsStreamListenerTee::OnStopRequest P3 NEW
859558 [meta] eliminate top font chrome-hangs -- NEW
859655 Printing causes main-thread hangs of multiple seconds -- NEW
859664 Direct3D device initialization hangs for multiple seconds on startup -- NEW
862383 nsFileChannel::nsFileChannel causes expensive lstats P3 NEW
865181 [Storage] Remove unnecessary mutexes from implementation of mozIStorageAsyncConnection P3 NEW
867804 Read-ahead the StartupCache P3 NEW
872980 Progressively limit preferences to 4kB per field -- 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
946159 nsSocketTransport::IsAlive does I/O on the main thread P5 NEW
951781 libssl accesses the NSS certificate database during handshake, causing disk I/O to block network activity P3 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

124 Total; 124 Open (100%); 0 Resolved (0%); 0 Verified (0%);