| 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 |
| 648789 |
Opening new tab 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 |
| 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 |
-- |
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 |
| 718864 |
huffingtonpost loads up to 50% slower in Firefox than in opera |
-- |
NEW |
| 720384 |
scroll restoration happens far too late |
-- |
NEW |
| 720459 |
Janky scrolling at http://html5please.us/ |
-- |
NEW |
| 721236 |
Concurrent GC marking |
-- |
NEW |
| 721336 |
Ban sync XMLHttpRequest with chrome privileges |
P3 |
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 |
| 778966 |
Use a callback to decide when to end an incremental GC slice |
-- |
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 |
| 791780 |
IGC Slices run back to back |
-- |
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 |
| 810406 |
Browser hang while loading Telemetry evolution |
-- |
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 |
