Wed Jul 17 2024 22:24:53 PDT
  • Keywords: perf:resource-use
  • Resolution: ---
190 bugs found.
ID Type Summary Product Comp Assignee▲ Status▲ Resolution Updated
1717016 High CPU usage on youtube Core Performance nobody UNCO --- 2024-04-25
1544091 my cpu is 10-15 degrees hotter on firefox (55...60C) than on google chrome (45..50C) Core Performance nobody UNCO --- 2024-04-18
1637606 HTML Based Speed Tests Produce Slower Results or Fail Core Performance nobody UNCO --- 2022-04-07
1654738 High Memory Usage, differs from Task Manager, GC, CC, Minimize Memory Core Performance nobody UNCO --- 2023-01-30
1695439 FireFox using too much RAM Core Performance nobody UNCO --- 2024-06-24
1714911 Unexpected memory usage in gmail tab Core Performance nobody UNCO --- 2023-01-19
1721034 Firefox Uses Over 12 GB of RAM When Accessing https://www.pch.com/sweepstakes/all-pch-sweeps Core Performance nobody UNCO --- 2022-04-07
1721070 Firefox using 12%-30% cpu for no apparent reason (FF 91.0b3) Core Performance nobody UNCO --- 2023-01-27
1753901 https://rationalwiki.org/wiki/Logical_fallacy using lots of CPU Core Performance nobody UNCO --- 2022-08-31
1762223 [GTK_USE_PORTAL] Multiple active downloads consume excessive CPU Core Widget: Gtk nobody UNCO --- 2023-02-14
1768112 firefox takes 80% CPU time due to invisible "100 Thank-Yous" Core Graphics: WebRender nobody UNCO --- 2022-10-10
1807258 Ram increases over time with GPU acceleration enabled Core Graphics nobody UNCO --- 2024-06-13
1839036 High CPU use when browser is idle Core JavaScript: GC nobody UNCO --- 2023-07-12
1852930 Runaway process "plugin-container.app" is usurping system resources Core Security: Process Sa nobody UNCO --- 2023-12-04
1870778 Potential Memory Leak When accessing PDF with User Agent Spoof Firefox PDF Viewer nobody UNCO --- 2024-02-09
1420699 Firefox uses a lot of CPU on MacOS Core General nobody UNCO --- 2022-11-02
1730823 FF 92 High GPU usage randomly Core Graphics nobody UNCO --- 2022-06-02
1750144 Insane memory usage & incorrect reporting on Emscripten website Core Performance nobody UNCO --- 2022-08-05
1753066 Saving files to a large directory causes browser to freeze. Core Widget: Gtk nobody UNCO --- 2022-03-04
1780732 Memory leak Core Audio/Video nobody UNCO --- 2023-08-02
1788552 memory Core Performance nobody UNCO --- 2024-06-28
1790262 high energy usage on mac m1 Core Graphics: WebRender nobody UNCO --- 2024-04-02
1793310 much CPU time on pages with a visible video while not being played Core Audio/Video: Playbac nobody UNCO --- 2022-10-03
1794014 using a lot of ram Core Performance nobody UNCO --- 2024-06-28
1811910 Extreme CPU usage in chrome process and pervasive responsiveness issues Core Performance nobody UNCO --- 2023-03-16
1827094 Excessive memory usage... since 112.0 Beta and 113.a1 Nightly Core Performance nobody UNCO --- 2023-06-06
1830648 High memory and CPU usage with many tabs and no tab unloading Core Performance nobody UNCO --- 2023-05-08
1831741 CPU throttling constantly Core Performance nobody UNCO --- 2023-08-04
1831828 animation completely glitched on certain screen sizes Core CSS Transitions and nobody UNCO --- 2023-05-10
1831928 Firefox is using a large amount of memory for tasks (750MB of gpu-committed) Core Performance nobody UNCO --- 2023-05-26
1838205 Firefox Performance issue Core Audio/Video nobody UNCO --- 2024-06-28
1845044 Firefox is consuming too many resources and is unstable. I've gone through the troubleshooting steps to no avail. Core Performance nobody UNCO --- 2023-08-18
1847838 memory Core Performance nobody UNCO --- 2023-09-07
1854628 Huge memory leak, possibly in WebGL (Windows and Linux) Core Graphics: CanvasWebG nobody UNCO --- 2024-05-06
1861870 Memory leak in firefox Core Performance nobody UNCO --- 2024-01-24
1876708 firefox using 3.4gb of memory with a few tabs open Core Performance nobody UNCO --- 2024-03-08
1877007 extremely high CPU usage even with one tab open on the splash screen Core Performance nobody UNCO --- 2024-03-08
1879177 3 youtube tabs are using 7GB of RAM Core Performance nobody UNCO --- 2024-03-08
1879905 firefox consuming 2 GB of RAM with 8 tabs open Core Performance nobody UNCO --- 2024-03-08
1881147 Ram memory leak Core Performance nobody UNCO --- 2024-03-21
1881653 Memory leak on PC Gamer website Core Performance nobody UNCO --- 2024-03-08
1882804 [GPU-canvas] Viewing webcam is slow (due to filters and gpu-canvas not falling back to skia-canvas) Core Graphics: Canvas2D nobody UNCO --- 2024-03-12
1889461 Ozon.ru eats up RAM Fenix Performance nobody UNCO --- 2024-06-11
1897710 Firefox utilizing a large amount of RAM (2.5gb with small amount of TABS open) Core Performance nobody UNCO --- 2024-05-22
1901546 comcast connection failures cause flood of "Login to server ---- with username ---- failed." which are hard to get rid of and leave Tbird partially disabled. High system memory. (pop) Thunderbird General nobody UNCO --- 2024-07-02
1533771 Preferences always initialize all the panes through findInPage.js initialization Firefox Settings UI nobody NEW --- 2023-09-21
1819286 Firefox slows down abysmally after a week or so, having hundreds of tabs open (thousands of tabs in total) Core Widget: Win32 davidp99 NEW --- 2024-06-13
1457276 TabChild::RecvRenderLayers often results in two consecutive paints Core DOM: Content Process mconley NEW --- 2023-09-21
1352205 Avoid running the refresh driver when the page is in background Core Layout nobody NEW --- 2022-11-02
1404042 [meta] Poor battery life on OSX with scaled resolution Core Graphics nobody NEW --- 2024-07-02
1481967 100% cpu usage and high memory use on page with multiple embedded videos Core Audio/Video: Playbac nobody NEW --- 2022-10-11
1493609 We're sometimes creating an about:blank document in the sidebar browser when the window opens Firefox General nobody NEW --- 2023-09-21
1496096 Horrible performance on runningworld due to media decoding Core Audio/Video: Playbac nobody NEW --- 2022-10-11
1503704 Very high CPU usage on fast.com Core Networking nobody NEW --- 2024-02-23
1505572 get*State should return an object instead of a serialized string Firefox Session Restore nobody NEW --- 2024-06-28
1529309 New tab page instances use more memory than new browser.xhtml instances and they shouldn't Firefox New Tab Page nobody NEW --- 2024-06-28
1572180 68 runs 3x slower than 67 on sample script Core Performance nobody NEW --- 2022-10-11
1613760 [fission-power] Synchronize periodic background tasks (such as expiration tracker ticks) across content processes Core Performance nobody NEW --- 2024-06-28
1639740 Deselecting rows in gsheets takes 1s+ main thread plus severe delay Core JavaScript Engine nobody NEW --- 2022-03-02
1670060 Massive memory leak when using the browser console DevTools Console nobody NEW --- 2024-03-20
1687376 Large number of idle processes (with fork server enabled?) Core General nobody NEW --- 2022-10-11
1693382 Firefox parent process has very high memory usage and a large number of "ports" Core Performance nobody NEW --- 2022-05-13
1709175 Switch from select() to poll for MacOS to reduce CPU usage Core Networking nobody NEW --- 2024-06-14
1731514 Extreme memory surge when opening a certain pdf-file Firefox PDF Viewer nobody NEW --- 2024-05-02
1764227 Out of Memory issue for ensonhaber.com Core Performance nobody NEW --- 2023-02-22
1768359 Scrolling through TurnitIn marking page spikes CPU to 20% and is incredibly slow Core Graphics: Canvas2D nobody NEW --- 2022-09-09
1788530 Fenix hangs and memory usage jumps on theguardian.com when opening headlines in new tab Fenix Performance nobody NEW --- 2024-07-07
1793980 High CPU utilisation on idle from PurgeTrackerService Core Privacy: Anti-Tracki nobody NEW --- 2022-11-17
1834526 Large fetch in Web Worker in extension causes hang in Firefox extension process Core JavaScript: GC nobody NEW --- 2024-06-07
1839322 TransmitPermissionsAndBlobURLsForPrincipalInfo blocks the main thread Core DOM: File nobody NEW --- 2023-06-29
1873235 Leaking page repeatedly triggers GC without freeing any memory Core JavaScript: GC nobody NEW --- 2024-06-28
1889621 A repeating 1h "nsHttpConnectionMgr" timer fires while GeckoView example is completely idle Core Networking: HTTP nobody NEW --- 2024-04-16
1897765 Network requests in background tabs where devtools is open jank the parent process main thread DevTools Netmonitor nobody NEW --- 2024-06-19
1749022 mdns_service thread remains active in the parent process Core WebRTC: Networking padenot NEW --- 2022-08-02
1682261 http://www.jabra.com.de claims up to 20% CPU load as background tab or when Firefox is hidden Core Audio/Video: Playbac alwu NEW --- 2023-01-27
646937 throttle animation in completely obscured windows (virtual desktop, minimised, hidden behind other fullscreened windows) Core Widget nobody NEW --- 2022-10-10
803709 We appear to be copying large data URIs over and over in nsSimpleURI. Core Networking nobody NEW --- 2023-06-05
1330187 DisplayList building shows signs of poor CPU usage Core Layout nobody NEW --- 2023-02-07
1330558 Explore using the presshell arena for FramePropertyTable Core Layout nobody NEW --- 2022-10-11
1356594 Rewrite AppConstants.jsm in C++ Toolkit General nobody NEW --- 2022-10-11
1400787 Using software video decoders (include VP9) ramps up computer fans on Macbook. Core Audio/Video: Playbac nobody NEW --- 2022-10-11
1403823 High CPU on twitch TV stream Core Audio/Video: Playbac nobody NEW --- 2024-05-05
1417221 Prevent background thumbnails from causing high CPU usage Toolkit General nobody NEW --- 2024-04-03
1436734 pdf with many images uses a lot of memory on scrolling Firefox PDF Viewer nobody NEW --- 2024-05-02
1458634 "forget about this site" in "show all history" blocks the main thread Firefox Bookmarks & History nobody NEW --- 2023-05-22
1471029 High cpu/gpu usage and hangs on page-http://telegra.ph/Telegram-X-03-26 & other pages Core Audio/Video: Playbac nobody NEW --- 2022-10-11
1482264 Lots of paints during tab switch Core DOM: Content Process nobody NEW --- 2024-04-02
1496235 Call browser.deprioritize() on the preloaded browser after it has been created Firefox New Tab Page nobody NEW --- 2024-04-02
1506331 High CPU utilization when rapidly hovering over tabs Firefox Tabbed Browser nobody NEW --- 2022-10-11
1520932 Spurious Choreographer vsync messages when running tests GeckoView General nobody NEW --- 2022-10-11
1524104 Consider lowering priority for offscreen iFrame processes in foreground tabs Core DOM: Content Process nobody NEW --- 2022-10-11
1526416 [meta] Preallocated about:newtab can use a lot of memory if there are multiple windows open Firefox Tabbed Browser nobody NEW --- 2024-04-02
1532115 [arm64-windows] Idle battery consumption on imgur is almost 2x higher than Edge Core Performance nobody NEW --- 2022-10-11
1535381 Experiment with setting thread affinity in worker threads Core Performance nobody NEW --- 2024-05-16
1536622 [10.14.4] Poor battery life on MacBook Pro Core Graphics nobody NEW --- 2023-02-01
1537652 Investigate more selective compacting GC. Core JavaScript: GC nobody NEW --- 2022-10-11
1540832 Consider using idle task for preloaded new tab browsers created when opening new tabs Firefox Tabbed Browser nobody NEW --- 2023-09-21
1548683 Preloaded new tab page thinks it's visible and redraws when the window is resized Firefox New Tab Page nobody NEW --- 2024-04-09
1553980 Defer initial processing by Privileged Content process at startup Firefox New Tab Page nobody NEW --- 2022-10-11
1566487 When defaulting to showing about:home on startup, try to delay WebExtension process start-up until after about:home is done loading WebExtensions General nobody NEW --- 2024-04-03
1570271 Opening the preferences page calls HomePage -> getHomepagePref 80 times Firefox Settings UI nobody NEW --- 2023-09-21
1573137 User reported extreme Android battery consumption - Firefox for Android 68.0 Core Performance nobody NEW --- 2022-10-11
1578123 Throttle the refresh driver in the parent process for occluded windows to reduce CPU Core Web Painting nobody NEW --- 2024-04-18
1580656 Do not scan for new fonts so aggressively on Linux Core Graphics: Text nobody NEW --- 2023-04-24
1584418 High CPU usage on Firefox likely due to hidden loading spinners Core SVG nobody NEW --- 2023-01-27
1587040 VSync firing 255 times more frequently than normal during "display off" sleep on Windows Core Graphics nobody NEW --- 2023-02-23
1605513 Slashdot tab has consistently high energy impact (score of >19) Core Performance nobody NEW --- 2022-10-11
1618001 Make React and friends shared vendored libraries instead of having multiple instances Toolkit General nobody NEW --- 2024-04-16
1626263 High CPU load while waiting for a page to load (MacOS) Core Graphics nobody NEW --- 2022-05-12
1629649 Excessive memory usage on 32gb machine Core Performance nobody NEW --- 2022-04-07
1638119 Allow extension processes to be preallocated Core DOM: Navigation nobody NEW --- 2023-11-25
1643064 Memory leak in foreground webworker Core JavaScript: GC nobody NEW --- 2022-03-02
1646496 Memory leak degradation Core Performance nobody NEW --- 2022-04-07
1648233 High CPU usage by idle Firefox Core Performance nobody NEW --- 2023-01-27
1653809 Firefox taking up CPU (fans going crazy) on realsimple.com Core Layout nobody NEW --- 2023-01-27
1682163 Excessive memory use causing Firefox Quantum and other app crashes Core Graphics: WebRender nobody NEW --- 2024-04-02
1683300 [meta] High CPU load (40% - 100%) caused by the top extensions loading animation on https://code.visualstudio.com/docs/ Core Graphics: WebRender nobody NEW --- 2024-04-02
1685835 Too many tabs of one site can cause Firefox to lag Core Performance nobody NEW --- 2022-04-07
1690654 Detect no-op renders during frame building and avoid the render, to reduce power usage Core Graphics: WebRender nobody NEW --- 2024-04-01
1700377 Consider auto-terminating slow scripts if they are running in a process only serving ads Core XPConnect nobody NEW --- 2022-11-30
1711758 More aggressively abort slow scripts when the tab (browser/docshell) goes away Core DOM: Navigation nobody NEW --- 2022-03-09
1720511 Typing responses in Google Mail stopped working when sharing a process with a meeting in Meet Core DOM: Content Process nobody NEW --- 2024-06-07
1722060 Leaving Firefox open for a few hours makes it use 51 gigs of RAM Core Graphics nobody NEW --- 2024-02-27
1725178 Worse CPU usage on twitch than Edge/Chrome Core Performance nobody NEW --- 2023-04-20
1747679 high mem usage Core Graphics: ImageLib nobody NEW --- 2022-09-12
1753740 high cpu usage with videos in tooltip, DataDecoder process Core Graphics nobody NEW --- 2022-02-12
1770995 Unnecessary power use to play soundless video below the fold Core Audio/Video: Playbac nobody NEW --- 2022-09-01
1816251 [web.whatsapp.com] - Clicking on "Files, links and documents" degrades performance Core JavaScript Engine: J nobody NEW --- 2023-03-28
1821691 Cancel remaining timers when http connections are all resolved Core Networking: HTTP nobody NEW --- 2024-05-24
1834706 www.boredpanda.com - Homescreen app is laggy when installed to the home screen GeckoView General nobody NEW --- 2024-05-14
1842079 Three seconds of CPU work during startup in mozilla::safebrowsing::ProtocolParserProtobuf::ProcessEncodedAddition and mozilla::safebrowsing::Classifier::UpdateTableV4 Toolkit Safe Browsing nobody NEW --- 2024-04-17
1864166 Higher RAM usage compared to Chrome when a background video trailer plays at hulu.com Core Audio/Video nobody NEW --- 2024-05-15
1867118 Slack is frozen/unresponsive when returning from sleep mode Core DOM: Performance nobody NEW --- 2024-01-11
1107626 Evaluate aggregating timers to reduce the number of times we wake up the CPU for serving them Core DOM: Core & HTML nobody NEW --- 2022-03-02
1670193 Google Meet high energy impact on macOS 10.15.7 Core Performance nobody NEW --- 10:29:49
711924 Compositing/present still hapens when the only changing parts are out of the viewport Core Graphics: WebRender nobody NEW --- 2024-04-08
917090 Visibility state is not updated when the browser window is obscured or on another workspace Firefox General nobody NEW --- 2022-10-10
1027106 Make ImageLib share cached imgRequests for the same SVG document even if the URI has a different ref/hash Core Graphics: ImageLib nobody NEW --- 2023-12-04
1351755 Provide "Slight/Light/Low power/Battery saving/Battery saver" mode option Core Performance nobody NEW --- 2023-06-26
1538784 Set nsThreadPool limits more intelligently Core XPCOM nobody NEW --- 2022-10-11
1554200 nsLocalFile's Clone method is too naive, should reuse more information from the original Core XPCOM nobody NEW --- 2023-02-22
1644740 Stop painting when the window is occluded on Windows Core Graphics nobody NEW --- 2022-12-21
1669307 Investigate relaxing windows timer granularity, especially on battery, to reduce energy use Core XPCOM nobody NEW --- 2024-06-28
1691100 suspend cpu to background tabs Core Performance nobody NEW --- 2024-06-28
1724952 Firefox causes excess WindowServer CPU usage Core Graphics: WebRender nobody NEW --- 2023-01-27
1727370 Higher power usage on gem.cbc.ca in Firefox than Chrome on macOS (2019 MBP 10.15) Core Performance nobody NEW --- 2022-03-02
1754796 Scrolling through the all tabs menu uses 100% of a core painting Core Graphics nobody NEW --- 2024-04-04
1755701 [meta] Firefox keeps too many files (ports) open Core XPCOM nobody NEW --- 2024-02-27
1764054 FF91 and newer produce *huge* CPU-Load in certain situations Core Graphics: WebRender nobody NEW --- 2024-04-02
1766284 browser_click_bookmarks_on_toolbar.js keeps vsync enabled Core Layout nobody NEW --- 2022-10-11
1771902 Compositor CSS animations are not paused in fully occluded windows Core Graphics nobody NEW --- 2024-01-29
1777994 Blinking the caret in the Firefox location bar uses a lot more GPU power than in other browsers Core Graphics nobody NEW --- 2023-04-17
1779363 Large performance difference when loading a PDF in "performance" vs "energy saving" mode Core Performance nobody NEW --- 2023-01-17
1794000 Videos in background tabs should stop playing Core Audio/Video: Playbac nobody NEW --- 2023-02-27
1795684 BoomChicago.com booking interface slows down entire browser Core Graphics: WebRender nobody NEW --- 2023-09-26
1798206 "Ambient Mode" on youtube uses a lot of GPU/CPU (particularly high impact with sw-wr) Core Graphics: WebRender nobody NEW --- 2024-06-14
1804893 >120% CPU load on https://web.arbeitsagentur.de/ausbildungssuche/ when scrolling through the page Core Layout nobody NEW --- 2024-04-08
1809000 Closing a browser window with an open panelview results in a leakcheck permafail: WARNING: YOU ARE LEAKING THE WORLD Core Widget: Cocoa nobody NEW --- 2023-12-04
1810370 Focus gives a "running in the background" notification in Task Switcher and uses lots of CPU in background Focus General nobody NEW --- 2024-03-26
1810550 Tabs use "excessive" CPU when application is backgrounded Fenix Browser Engine nobody NEW --- 2024-06-19
1812394 High parent-process CPU usage, with animated balloons SVG background-image Core Graphics: WebRender nobody NEW --- 2024-04-02
1820246 Extreme lag (almost crash) when loading an animated svg with filters Core Graphics: WebRender nobody NEW --- 2023-12-21
1820840 High CPU/GPU usage on website https://openbb.co/ Core Performance nobody NEW --- 2023-03-09
1831458 Very high memory usage on Zenni Optical's website Core Performance nobody NEW --- 2023-05-26
1833016 Very high JS string memory usage and lots of structured-clone-holder, with lag and slowdowns WebExtensions Untriaged nobody NEW --- 2023-12-04
1837553 KDE X11/Mesa 23.1.1/Radeon RX 580: 5GB memory leak (heap-unclassified) in RDD process when scrolling on Youtube Shorts Core Audio/Video: Playbac nobody NEW --- 2024-05-14
1838448 CPU usage in StructuredCloneHolder.deserialize starting version 115 far higher than in 114 with Dashlane extension WebExtensions Storage nobody NEW --- 2023-12-04
1839242 svg high cpu usage Core Graphics: WebRender nobody NEW --- 2023-08-10
1846333 Animated clouds on http://www.wdrmaus.de use around 60% CPU and GPU load Core Performance nobody NEW --- 2023-12-04
1848647 Closing a background tab with CSS OMTA animations can lead to GPU process continuously doing OMTA stuff, leading to stutter and increased power use Core CSS Transitions and nobody NEW --- Sun 03:46
1854921 Scripts in closed tabs keep using 100% of a CPU core Core Performance nobody NEW --- 2023-10-05
1863805 PWebrtcGlobal::Reply_GetStats is very visible in hang reports Core WebRTC: Audio/Video nobody NEW --- 2024-04-26
1867074 60% CPU usage of content process because of memory leak in gc-heap on Amazon product page Core Performance nobody NEW --- 2024-06-28
1868643 Memory leak and high CPU consumption at marketwatch.com Core Performance nobody NEW --- 2024-05-06
1880530 [linkedin.com] Adding multiple contacts in rapid succession feels slower on Firefox Nightly Core Performance nobody NEW --- 2024-06-18
1889609 [meta] Fenix battery life improvements tracking bug Fenix Performance nobody NEW --- 2024-06-29
1889648 Fenix restarts itself soon after getting killed by the user Fenix Performance nobody NEW --- 2024-06-11
1896943 Pages are restyled entirely whenever the phone is moved (turning the screen on for a few seconds) Fenix Performance nobody NEW --- 2024-05-30
1899405 systemui spends a bunch of time painting gradients during page load Fenix General nobody NEW --- 2024-07-11
1900288 Higher CPU use than Chrome on twitch.tv Core Audio/Video nobody NEW --- 2024-06-27
1889617 The initial remote settings download is inefficient Firefox Remote Settings Clie acottner ASSI --- 07:35:02
560067 animated images inside visibility:hidden still eat CPU Core Layout emilio ASSI --- 2024-02-19
1761554 `ResourceCommand`'s `_cache` can grow indefinitely DevTools General dothayer REOP --- 2022-05-20
1823729 parent process can consume many GB of memory if google document active WebExtensions General nobody REOP --- 2024-04-08
1503259 Animated page load throbber causes a permanent ~9% CPU load for Renderer threads of the main process Core Graphics: WebRender nobody REOP --- 2024-04-02
1732049 Slow animation when using Mapbox GL Core JavaScript Engine nobody REOP --- 2024-02-19
843639 gloda implications of indexing / downloading email with hundreds of email addresses, memory usage rises to ~300MB/sec until it crashes Thunderbird Search nobody REOP --- 2024-07-02
968123 Hidden CSS background gif (completely covered by opaque child <img>) activates the refresh driver Core CSS Parsing and Comp nobody REOP --- 2024-02-19
1727584 CSS animation causing 60Hz restyles despite the current and next animation steps being identical Core CSS Transitions and nobody REOP --- 2022-03-02
1838865 Viewing large PDF causes persistent high CPU and makes Firefox UI unresponsive Core Graphics: WebRender nobody REOP --- 2024-06-06
190 bugs found.
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