Wed Jul 17 2024 22:30:38 PDT
  • Keywords: topperf
117 bugs found.
ID Type Summary Product Comp Assignee▲ Status▲ Resolution Updated
1556243 Reddit CSS for classicwow subreddit causes severe performance issues Core Graphics: WebRender aosmond RESO FIXE 2022-03-02
1405589 [OMTP] Very slow painting when scrolling fast on certain webpages Core Graphics: Layers bas RESO FIXE 2017-11-13
112564 Cache-Control: no-cache should not affect back/forward buttons Core Networking: HTTP darin.moz RESO FIXE 2015-10-08
133261 Optimize the background Tiling Core Layout dcone RESO DUPL 2002-08-07
114696 Permission checking in queries not optimal Bugzilla Query/Bug List dkl RESO FIXE 2012-12-18
175542 [13%-20%] page load improvement - Reflow should be suppressed along with paints when paint suppression is active Core Layout kmcclusk RESO WONT 2002-12-29
1295214 Entire UI randomly becomes janky Core Graphics mchang RESO FIXE 2017-01-27
87406 Make Bugzilla work with mod_perl (under Apache) Bugzilla Bugzilla-General mkanat RESO FIXE 2014-04-26
284184 process_bug.cgi is slow because it sends mail immediately Bugzilla Email Notifications mkanat RESO FIXE 2009-10-26
91643 All Mozilla windows frozen during some stages of loading a page Core Layout nobody RESO WORK 2018-05-08
461031 Investigate mobile responsiveness problems caused by not returning to the event loop Core DOM: Core & HTML nobody RESO FIXE 2019-03-13
76705 application-level improvements to startup SeaMonkey General trudelle RESO FIXE 2006-01-30
135626 CPU / mouse-cursor hog due to background image Core Layout attinasi RESO DUPL 2002-04-23
86355 [FIX]Mozilla hangs (100% cpu) when doing view source (bidi page) Core Layout: Text and Fon bzbarsky RESO FIXE 2011-04-13
49141 New window performance Core Graveyard Tracking chofmann RESO FIXE 2016-07-15
170272 [DHTML] default windows video hardware acceleration slows us down. Core Layout: Images, Vide dcone RESO FIXE 2018-08-29
116483 2-4% spike in startup time, after timer landed Core XPCOM doug.turner RESO WONT 2014-04-26
1311807 Some images and media players delayed for minutes Core DOM: Security kate+bugzilla RESO FIXE 2017-09-06
87808 DHTML performance exponentially degrades with amount/type of repaint necessary (such as presence of background) Core DOM: Events kmcclusk RESO WORK 2014-04-26
53486 Default linux MOZ_OPTIMIZE_FLAG is -0 !! SeaMonkey Build Config leaf RESO DUPL 2014-04-26
176002 Move duplicate statistics into the db Bugzilla Reporting/Charting mkanat RESO FIXE 2014-04-26
54542 Large tables are slow Core Layout: Tables nobody RESO WORK 2014-04-26
94587 Excessive Re-Layout Re-Reflow long documents Core Layout nobody RESO INCO 2018-09-18
139986 [DHTML] Moving layers over another takes up 100% CPU Core Layout nobody RESO INCO 2011-04-01
64516 95-99% CPU usage for dhtml "snow effect" Core DOM: Core & HTML rbs RESO WORK 2010-07-17
70156 Some dhtml animations run slowly in mozilla Core DOM: CSS Object Mode rjesup RESO WORK 2014-04-26
1368720 Update Skia to m66 branch Core Graphics lsalzman RESO FIXE 2019-07-25
7251 improve startup performance tracking bug Core Graveyard Tracking nobody RESO DUPL 2016-07-15
38486 Caching DOM and JS context in memory might provide faster back/forward Core DOM: Core & HTML nobody RESO DUPL 2014-04-26
1066789 Implement a heuristic to replace dom.ipc.processCount Core DOM: Content Process nobody RESO INCO 2021-10-04
1300394 Website runs with 100% CPU in Firefox without showing a slow script warning Core JavaScript Engine nobody RESO INVA 2021-06-06
1399962 Consider reducing the number of content processes for dual core CPUs Core DOM: Content Process nobody RESO WONT 2022-03-02
86319 (large) animated GIF has terrible performance Core Graveyard Image: Painting pavlov RESO WORK 2011-05-13
465128 .autoreg timestamp problems (component registration owns startup time) Toolkit Graveyard XULRunner taras.mozilla RESO FIXE 2016-02-12
69010 nsRenderingContext::FillRect is waaaaay slow because we paint too much [gfx] Core Layout dcone RESO DUPL 2007-12-10
29249 49 dlls loaded on startup: 50% of startup time Core XPCOM nobody RESO INVA 2008-05-12
39310 [meta] progressmeter and throbber do not stop spinning Core Graveyard Tracking nobody RESO INCO 2016-07-15
75868 Consequences of some checkin on April 9th (mostly goodness, but Mac wants some too) SeaMonkey General attinasi RESO DUPL 2004-11-22
73498 New disk cache is slower initially loading pages than the old disk cache Core Networking: Cache beard RESO DUPL 2001-03-28
77757 Windows startup time increased SeaMonkey General cathleennscp RESO FIXE 2004-11-22
73295 new cache load time is much slower in 3/23 than 3/21 Core Networking: Cache gordon RESO FIXE 2001-06-04
77219 Disk cache doesn't work Core Networking: Cache gordon RESO INVA 2001-04-23
68103 21% speedup in Seamonkey with a fix in nsXULElement! Core XUL hyatt RESO FIXE 2008-07-31
78077 Window opening times get really slow after opening multiple browser windows (on win32) Core XUL hyatt RESO WORK 2014-04-25
102992 Link Toolbar should be converted to XBL SeaMonkey UI Design jag+mozilla RESO WONT 2014-04-25
739096 Update cairo to version 1.17.4 Core Graphics jfkthame RESO FIXE 2024-04-23
214324 Mozilla News huge memory consumption when clicking on newsgroups MailNews Core Database mozilla RESO DUPL 2008-07-31
72885 Large text document take 21X longer to load than in 4.x Core Layout nobody RESO INCO 2018-09-09
83395 [meta] Unix Mozilla (gtk port) makes too many slow X11 calls Core XUL nobody RESO INVA 2015-09-16
93461 images swapped via JS are loaded again and again from network Core Networking: Cache nobody RESO WORK 2014-04-26
94828 slow performance w/ multiple animated gifs Core Graphics: ImageLib nobody RESO FIXE 2007-11-09
400260 Java applet's are staying in the memory. Firefox General nobody RESO DUPL 2009-03-23
490122 Firefox periodically becomes unresponsive/freezes: video jerks/pauses/halts; links, tabs, menus stop responding Firefox General nobody RESO INCO 2021-08-20
541635 page scrolling is not smooth, especially when dragging with scrollbar Firefox General nobody RESO WORK 2011-03-05
1195201 Firefox version 40.0.0 and 40.0.2 high ping and slow page loading (slow ping related), Disqus needs time to load. Core Networking nobody RESO DUPL 2015-08-19
1272644 Script hangs Firefox Core General nobody RESO WONT 2019-01-22
1315540 No longer use direct2d 1.1 for AzureCanvasBackend and AzureContentBackend, but use Skia in about:support Core Graphics nobody RESO DUPL 2016-11-15
1361792 (Firefox Screenshots) 2.11 - 48.22% most all tests (linux64, osx-10-10, windows7-32, windows8-64) regression on push 8090b323f5d1 (Wed May 3 2017) Firefox General nobody RESO FIXE 2018-10-17
1397092 High Cpu/GPU usage due to "Ping Pong" loading indicators in Firefox 57 affecting browser performance Firefox Theme nobody RESO DUPL 2022-03-02
138034 major scrolling performance degradation since 0.9.8 Core Graphics: ImageLib pavlov RESO DUPL 2002-05-08
67692 large tables are slow resolving style Core CSS Parsing and Comp pierre RESO FIXE 2014-04-26
655084 Teardown of pages with large number of form controls is O(n^2) due to weakFrames Core Layout rjesup RESO FIXE 2015-10-29
70150 blocks are reflowing children too much and not checking NS_FRAME_FIRST_REFLOW Core Layout waterson RESO WORK 2001-03-07
26516 java/plugins initialize at startup Core Graveyard Plug-ins beard VERI FIXE 2022-05-16
99442 Huge "leak" occurs while loading a 'random' page during page-loader test SeaMonkey General brendan VERI FIXE 2004-11-22
22486 Investigate creation of a msg compose/reply window performance MailNews Core Composition bugzilla VERI WORK 2018-11-14
33269 Back/Forward Page Performance is slow compared to IE/Opera Core DOM: Navigation jrgmorrison VERI DUPL 2014-04-26
1550531 -moz-element leaks memory and hangs whole browser with massive CPU usage at closing browser window with large image Theme after landing patch from bug #1330487 Core SVG jwatt VERI FIXE 2022-03-02
1371255 Very bad memory efficiency of browser.storage.local WebExtensions Storage lgreco VERI FIXE 2020-05-23
31770 Find on Page [and in view source] extremely slow SeaMonkey UI Design mozeditor VERI FIXE 2008-07-31
364315 Speculatively load referenced files while "real" parsing is blocked on a <script src=> load Core DOM: HTML Parser mrbkap VERI FIXE 2020-10-15
107900 window open time is significantly dependent on "size" of bookmarks.html SeaMonkey Bookmarks & History paulkchen VERI FIXE 2004-11-22
70938 meta: Land new image library. Core Graphics: ImageLib pavlov VERI FIXE 2002-07-21
74506 enabling imglib2 has caused some pages to stop firing onload Core Graphics: ImageLib pavlov VERI FIXE 2001-05-18
75121 [DHTML] inefficient incremental reflow targeted at absolutely positioned block frames Core Layout roc VERI FIXE 2014-04-26
102321 ESPN's new page layout is dog slow in mozilla Core Layout saari VERI FIXE 2014-04-26
1329630 Firefox constantly uses 100% CPU after long time movie browsing, even after closing movies Core Audio/Video: Playbac suro001 VERI FIXE 2019-05-21
69534 Unnecessary Reflows for animated GIF images: eliminate them now. Core Layout attinasi VERI FIXE 2001-04-25
72482 Save As dialog takes far too long to appear (file list loading too slow) (file picker) Core XUL bryner VERI DUPL 2001-05-26
68778 large history.mab file delays displaying the first message SeaMonkey MailNews: Message Di chuang VERI WORK 2011-08-05
1313595 Lower timeout on HSTS Priming channels Core DOM: Security kate+bugzilla VERI FIXE 2017-03-24
1096013 [e10s] Improve perceived session restore duration Firefox Session Restore mconley VERI FIXE 2017-03-28
1627426 Patch from bug #1625857 should be only applied for Windows 10 or only for NVIDIA GPUs with Pascal and newer microarchitecture Core Graphics nobody VERI DUPL 2020-04-15
129115 Reflow coalescing within JS called from SetTimeout Core Layout waterson VERI FIXE 2014-12-25
112308 2M history.dat file adds 30% to startup time and 1MB or more to RAM Core Graveyard History: Global bugzilla VERI FIXE 2018-08-01
77458 Cache is flaky, a lot of the time slower Core Networking: Cache darin.moz VERI WONT 2004-03-01
52798 gif img in table with width=100% blinks rapidly (flashes, flickers) (can happen without tables) [layout] Core Graveyard GFX dcone VERI FIXE 2009-01-22
50843 Win98,95-SSL urls with lots of gifs load very slow. Core Graveyard Security: UI ddrinan0264 VERI WORK 2016-09-27
60447 Disk cache is cleared if current entries reach maximum Core Networking: Cache gordon VERI FIXE 2001-05-23
12234 make vertical scrollbar for web pages visible always Core Layout hyatt VERI DUPL 2024-03-18
57730 [imglib]Big Page Load Win->fix imgcache/neckocache loadattribute interactions Core Graphics: ImageLib pavlov VERI FIXE 2001-04-16
1382966 [meta] Improve performance of bookmarks batch operations with Async Transactions Firefox Bookmarks & History mak VERI FIXE 2019-05-21
1446817 "Disable HTML5 Autoplay" is causing Firefox to use massive amount of CPU and RAM WebExtensions General afnankhan VERI FIXE 2019-05-21
63750 network reloading of 1x1 image (depends on libpron landing) Core Graphics: ImageLib attinasi VERI FIXE 2002-05-27
76299 scrolling animation by setting style.top is extremely slow compared to IE and Netscape 4.x Core DOM: CSS Object Mode attinasi VERI DUPL 2002-02-03
140236 trunk only: page scrolling performance is slow when page contains tiled background Core Layout attinasi VERI DUPL 2002-04-29
68045 precompile chrome JS and load it incrementally ("fastload") Core JavaScript Engine brendan VERI FIXE 2007-12-10
1301301 Large regression in page close cycle collection pauses Core XPCOM continuation VERI FIXE 2019-05-21
66516 Further adventures in page loading times (beyond style resolution) SeaMonkey General darin.moz VERI FIXE 2004-11-22
83772 [perf] http connections should be reused earlier Core Networking: HTTP darin.moz VERI DUPL 2001-06-04
98838 <select> triggers 100% CPU usage, when visible, flickering caret, possibly missing arrows Core Preferences: Backend darin.moz VERI FIXE 2001-09-11
69836 FTP d/l speed maxes out at 60K/sec Core Graveyard Networking: FTP doug.turner VERI FIXE 2024-02-08
83852 Some dhtml animations run slowly in mozilla Core DOM: Core & HTML jstenback+bmo VERI DUPL 2008-07-31
70211 nsContainerFrame::PositionChildViews does a recursive walk of the frame tree when positioning views Core Layout kmcclusk VERI FIXE 2001-05-22
1292498 Hardware H264 Decoding, Direct2D 1.1 (fallout to Skia or Cairo) and Direct3D11 (fallout to Direct3D 9) are broken by landing patches from bug #1289640 Core Graphics: Layers matt.woodrow VERI FIXE 2019-05-21
1305213 High CPU usage after landing Bug 1288618, about:support and about:media no longer reports that HW H264 decoding is supported Core Audio/Video: Playbac matt.woodrow VERI FIXE 2016-10-03
1256472 Try to reclaim session restore gains by restoring tabs lazily Firefox Session Restore mconley VERI FIXE 2020-05-14
1563918 Massive performance issue after maximizing/windowing when pointer/mouse cursor is still at maximize/window button and blinking/flickering of maximize/window button after landing patch from bug #1551961 Core DOM: UI Events & Foc mconley VERI FIXE 2019-07-19
69101 Things that slow down mac painting Core Layout mikepinkerton VERI FIXE 2001-03-02
71071 rewriting cookies.txt on each cookie Core Networking: Cookies morse VERI FIXE 2001-05-15
1329624 Firefox constantly uses 100% of one CPU core after updating DownThemAll! *nightly* extension Firefox Extension Compatibil nobody VERI WORK 2019-05-21
124999 Animated Gifs bring Mozilla down Core Graphics: ImageLib pavlov VERI DUPL 2002-04-04
149241 Optimizations for highspeed/low latency connections SeaMonkey UI Design samir_bugzilla VERI INVA 2004-11-23
1379940 Hovering some hyperlinks causes 100% CPU usage, memory leaks and UI hangs after landing patch from bug #1356317 Core Graphics: Layers spohl.mozilla.bugs VERI FIXE 2019-05-21
164209 3% startup time increase on the 08/22 between 14:50 and 16:30 SeaMonkey General srgchrpv VERI FIXE 2004-11-22
185598 Don't repaint window contents when resizing a pane with mouse SeaMonkey MailNews: Message Di sspitzer VERI DUPL 2004-11-22
1344772 Logical loop with CPU exhaustion in MediaFormatReader::NotifyDataArrived Core Audio/Video: Playbac suro001 VERI FIXE 2017-04-26
117 bugs found.
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