Firefox Support Forum

Firefox bowser stopped working suddenly. Tried uninstall and install multiple times with multiple options.

Still not working even after cleaned all Firefox related files using uninstall tools and installed again.

After start up Firefox I am not getting any audio. No other app nor browser has this issue. It does not show up in the volume mixer. I've made sure all apps, browser, drivers, and windows are up to date.

Hi, from many time (some months ago) I have this problem: sometimes (well, actually very often, but not always) when I start firefox it runs in “Private browsing” mode.

The problem happens both if I click on the icon in the gnome dock, and if I run firefox from the terminal. In both situations, the problem happens sometimes, and some times not.

When I launch it from the terminal, the output is the same, either if I see the bug or not.

The problem has already been reported on the Fedora support site, too.

What can I do to sort it out? Thank you very much

Running Firefox 108.0.1 on Fedora 36

I cannot access https://www.ebay.co.uk/ with Firefox. Just get a blank screen and it never seems to load. I can access other sites ok in Firefox and I can access it in Edge. I ran the refresh option to disable all plugins and it didn't fix it.

My problem is simple. I'm trying to use this supermarket website (continente.pt) and the website doesn't load up the images of the products. I have to reload a bunch of times until it finally does. I switched from Google chrome but apparently it was a big mistake, never thought Firefox was so crap. BTW, It's not my adblocker, turned off Enhanced tracking protection and cleared cookies. Nothing works. (on annex I show firefox and google chrome being used on the same website)

I have working touchpad scrolling in all windows apps except for firefox.

I tried all 3 states of `ui.trackpoint_hack.enabled` and it still doesn't work. Scrolling is working running in troubleshooting mode. I ran "refresh firefox" but it still doesn't work. I made sure all synced plugins were disabled and still doesn't work.

How can I fix it?

Windows 10.

Maybe this is obvious and I just don't know the proper terms to find a solution, but I've recently lost the little loading icon that spins in the left hand corner of a tab when you load a site (see gif). No idea what happened to it, but I've tried refreshing and reinstalling to no avail. Yesterday I reinstalled Windows 10 on my machine (not because of this) and it worked correctly until I booted up this morning and it's switched back to that weird icon. Any ideas how I might fix it? Could something like a windows update have messed it up? I miss that little spinney icon more than I would have expected.

Firefox worked perfectly, but since a few days I can't download anything. I'm using Mozilla Firefox snap for Ubuntu 22.04, version 110.0.1 (64 bits) canonical-002 - 1.0 With Chrome everything works perfectly so I assume it's a problem from Firefox.

When I open a PDF, a MP3 or any file, the "save" option doesn't display anything. Usually it opened a dialog where I could choose the folder where I wanted to download the file, but now I have nothing.

I have only 4 extensions: - adblocker ultimate - duckduckgo privacy essentials - vuejs dev tools - zotero connector

I always had them and I never encountered any problem.

I am getting repeated pop-up windows that say that Firefox has crashed, but Firefox is not running on my system. It is not in the Startups and I rarely use it.

Windows 10 Firefox v110.0

Is this malicious not related to Firefox? Does Firefox have a background task that is not visible on Task Manager? Or what?

Details:

AdapterDeviceID: 0x1f82 AdapterDriverVersion: 31.0.15.1694 AdapterSubsysID: 11573842 AdapterVendorID: 0x10de Add-ons: %7B242af0bb-db11-4734-b7a0-61cb8a9b20fb%7D:2.5.3,formautofill%40mozilla.org:1.0.1,pictureinpicture%40mozilla.org:1.0.0,screenshots%40mozilla.org:39.0.1,webcompat%40mozilla.org:110.0.0,default-theme%40mozilla.org:1.3,google%40search.mozilla.org:1.3,amazondotcom%40search.mozilla.org:1.4,wikipedia%40search.mozilla.org:1.2,bing%40search.mozilla.org:1.4,ddg%40search.mozilla.org:1.3,ebay%40search.mozilla.org:1.4,addons-search-detection%40mozilla.com:2.0.0 AvailablePageFile: 7892074496 AvailablePhysicalMemory: 11065737216 AvailableVirtualMemory: 138531183984640 BackgroundTaskMode: 0 BlockedDllList: BuildID: 20230214051806 CPUMicrocodeVersion: 0xcc ContentSandboxCapable: 1 ContentSandboxLevel: 6 ContentSandboxWin32kState: Win32k Lockdown enabled -- default value is true CrashTime: 1677810693 DOMFissionEnabled: 1 DOMIPCEnabled: 1 EMCheckCompatibility: true ExperimentalFeatures: devtools.inspector.compatibility.enabled GPUProcessLaunchCount: 1 GPUProcessStatus: Destroyed GpuSandboxLevel: 1 HeadlessMode: 0 InstallTime: 1677733484 LauncherProcessState: 0 ModuleSignatureInfo: {"Malwarebytes Inc.":["mbae64.dll"],"Microsoft Corporation":["VCRUNTIME140_1.dll","msvcp140.dll","VCRUNTIME140.dll"],"Microsoft Windows":["bcrypt.dll","clbcatq.dll","cfgmgr32.dll","setupapi.dll","linkinfo.dll","explorerframe.dll","ktmw32.dll","dataexchange.dll","twinapi.dll","ondemandconnroutehelper.dll","directmanipulation.dll","Windows.Globalization.dll","DWrite.dll","Windows.UI.Immersive.dll","Windows.Security.Integrity.dll","icm32.dll","wscapi.dll","InputHost.dll","textinputframework.dll","Windows.UI.dll","BCP47mrm.dll","NapiNSP.dll","Bcp47Langs.dll","winrnr.dll","wshbth.dll","pnrpnsp.dll","dbgcore.dll","iertutil.dll","wsock32.dll","srvcli.dll","urlmon.dll","webauthn.dll","wininet.dll","msxml6.dll","dbghelp.dll","FWPUCLNT.DLL","OneCoreUAPCommonProxyStub.dll","rasadhlp.dll","winmm.dll","ColorAdapterClient.dll","mscms.dll","winhttp.dll","cryptnet.dll","MMDevAPI.dll","AudioSes.dll","WindowManagementAPI.dll","winnsi.dll","npmproxy.dll","dhcpcsvc.dll","dhcpcsvc6.DLL","avrt.dll","version.dll","twinapi.appcore.dll","netprofm.dll","taskschd.dll","nlaapi.dll","propsys.dll","wtsapi32.dll","d3d11.dll","WinTypes.dll","dcomp.dll","CoreUIComponents.dll","CoreMessaging.dll","uxtheme.dll","dwmapi.dll","kernel.appcore.dll","windows.storage.dll","gpapi.dll","dxgi.dll","winsta.dll","rsaenh.dll","ntmarta.dll","umpdc.dll","IPHLPAPI.DLL","dnsapi.dll","netutils.dll","powrprof.dll","mswsock.dll","cryptbase.dll","cryptsp.dll","wldp.dll","ntasn1.dll","ncrypt.dll","msasn1.dll","devobj.dll","sspicli.dll","userenv.dll","profapi.dll","ucrtbase.dll","bcryptPrimitives.dll","gdi32full.dll","crypt32.dll","msvcp_win.dll","KERNELBASE.dll","win32u.dll","wintrust.dll","kernel32.dll","gdi32.dll","nsi.dll","imagehlp.dll","shlwapi.dll","ole32.dll","user32.dll","combase.dll","psapi.dll","ws2_32.dll","SHCore.dll","msctf.dll","imm32.dll","advapi32.dll","shell32.dll","rpcrt4.dll","msvcrt.dll","sechost.dll","oleaut32.dll","ntdll.dll"],"Mozilla Corporation":["firefox.exe","xul.dll","nss3.dll","freebl3.dll","nssckbi.dll","mozglue.dll","osclientcerts.dll","softokn3.dll","lgpllibs.dll"]} MozCrashReason: Shutdown hanging at step XPCOMShutdownThreads. Something is blocking the main-thread. Notes: FP(D00-L1000-W0000100-T000) DWrite? DWrite+ WR? WR+ ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox ReleaseChannel: release SafeMode: 0 SecondsSinceLastCrash: 1555 ShutdownProgress: xpcom-shutdown-threads StartupCrash: 0 StartupTime: 1677810589 SubmittedFrom: Client SystemMemoryUsePercentage: 67 TelemetryEnvironment: {"build":{"applicationId":"{ec8030f7-c20a-464f-9b0e-13a3a9e97384}","applicationName":"Firefox","architecture":"x86-64","buildId":"20230214051806","version":"110.0","vendor":"Mozilla","displayVersion":"110.0","platformVersion":"110.0","xpcomAbi":"x86_64-msvc","updaterAvailable":true},"partner":{"distributionId":null,"distributionVersion":null,"partnerId":null,"distributor":null,"distributorChannel":null,"partnerNames":[]},"system":{"memoryMB":32686,"virtualMaxMB":134217728,"cpu":{"isWindowsSMode":false,"count":12,"cores":6,"vendor":"GenuineIntel","name":"Intel(R) Core(TM) i5-10400 CPU @ 2.90GHz","family":6,"model":165,"stepping":3,"l2cacheKB":256,"l3cacheKB":12288,"speedMHz":2904,"extensions":["hasMMX","hasSSE","hasSSE2","hasSSE3","hasSSSE3","hasSSE4_1","hasSSE4_2","hasAVX","hasAVX2","hasAES"]},"os":{"installYear":2020,"hasSuperfetch":true,"hasPrefetch":true,"name":"Windows_NT","version":"10.0","locale":"en-US","servicePackMajor":0,"servicePackMinor":0,"windowsBuildNumber":19045,"windowsUBR":2604},"hdd":{"binary":{"model":"SanDisk SDSSDA960G","revision":"Z33130RL","type":"SSD"},"profile":{"model":"SanDisk SDSSDA960G","revision":"Z33130RL","type":"SSD"},"system":{"model":"SanDisk SDSSDA960G","revision":"Z33130RL","type":"SSD"}},"gfx":{"D2DEnabled":true,"DWriteEnabled":true,"ContentBackend":"Skia","Headless":false,"EmbeddedInFirefoxReality":false,"adapters":[{"description":"NVIDIA GeForce GTX 1650","vendorID":"0x10de","deviceID":"0x1f82","subsysID":"11573842","RAM":4096,"driver":"C:\\Windows\\System32\\DriverStore\\FileRepository\\nv_dispig.inf_amd64_ee20464bb4ac57f4\\nvldumdx.dll,C:\\Windows\\System32\\DriverStore\\FileRepository\\nv_dispig.inf_amd64_ee20464bb4ac57f4\\nvldumdx.dll,C:\\Windows\\System32\\DriverStore\\FileRepository\\nv_dispig.inf_amd64_ee20464bb4ac57f4\\nvldumdx.dll,C:\\Windows\\System32\\DriverStore\\FileRepository\\nv_dispig.inf_amd64_ee20464bb4ac57f4\\nvldumdx.dll C:\\Windows\\System32\\DriverStore\\FileRepository\\nv_dispig.inf_amd64_ee20464bb4ac57f4\\nvldumd.dll,C:\\Windows\\System32\\DriverStore\\FileRepository\\nv_dispig.inf_amd64_ee20464bb4ac57f4\\nvldumd.dll,C:\\Windows\\System32\\DriverStore\\FileRepository\\nv_dispig.inf_amd64_ee20464bb4ac57f4\\nvldumd.dll,C:\\Windows\\System32\\DriverStore\\FileRepository\\nv_dispig.inf_amd64_ee20464bb4ac57f4\\nvldumd.dll","driverVendor":null,"driverVersion":"31.0.15.1694","driverDate":"7-21-2022","GPUActive":true}],"monitors":[{"screenWidth":1920,"screenHeight":1080,"refreshRate":60,"pseudoDisplay":false},{"screenWidth":1920,"screenHeight":1080,"refreshRate":60,"pseudoDisplay":false}],"features":{"compositor":"webrender","hwCompositing":{"status":"available"},"gpuProcess":{"status":"available"},"webrender":{"status":"available"},"wrCompositor":{"status":"available"},"openglCompositing":{"status":"unused"},"omtp":{"status":"unused"},"d3d11":{"status":"available","version":45312,"warp":false,"textureSharing":true,"blocklisted":false},"d2d":{"status":"available","version":"1.1"}}},"appleModelId":null,"hasWinPackageId":false,"sec":{"antivirus":["Malwarebytes"],"antispyware":null,"firewall":["Windows Firewall"]},"isWow64":false,"isWowARM64":false},"settings":{"blocklistEnabled":true,"e10sEnabled":true,"e10sMultiProcesses":8,"fissionEnabled":true,"telemetryEnabled":false,"locale":"en-US","intl":{"requestedLocales":["en-US"],"availableLocales":["en-US"],"appLocales":["en-US"],"systemLocales":["en-US","en-AI","en-AG","en-BB","en-BS","en-AT","en-AU","en-AS"],"regionalPrefsLocales":["en-US"],"acceptLanguages":["en-US","en"]},"update":{"channel":"release","enabled":true,"autoDownload":true,"background":true},"userPrefs":{"browser.fixup.alternate.enabled":false,"browser.shell.checkDefaultBrowser":false,"browser.search.region":"US","browser.search.widget.inNavBar":false,"browser.urlbar.autoFill":true,"browser.urlbar.autoFill.adaptiveHistory.enabled":false,"browser.urlbar.dnsResolveSingleWordsAfterSearch":0,"browser.urlbar.quicksuggest.dataCollection.enabled":false,"browser.urlbar.suggest.quicksuggest.nonsponsored":true,"browser.urlbar.suggest.quicksuggest.sponsored":true,"browser.urlbar.suggest.bestmatch":true,"media.gmp-gmpopenh264.lastInstallStart":1662648115,"media.gmp-gmpopenh264.lastDownload":1662648116,"media.gmp-gmpopenh264.lastUpdate":1662648116,"media.gmp-manager.lastCheck":1662649175,"media.gmp-manager.lastEmptyCheck":1662649175,"network.trr.strict_native_fallback":false,"widget.content.allow-gtk-dark-theme":false,"widget.content.gtk-high-contrast.enabled":true,"nimbus.qa.pref-1":"default","nimbus.qa.pref-2":"default"},"sandbox":{"effectiveContentProcessLevel":6,"contentWin32kLockdownState":15},"launcherProcessState":0,"addonCompatibilityCheckEnabled":true,"isDefaultBrowser":false,"attribution":{"campaign":"%2528not%2Bset%2529","content":"%2528not%2Bset%2529","dltoken":"e8909185-0f90-4917-ac83-16816f33e783","experiment":"%2528not%2Bset%2529","medium":"referral","source":"www.google.com","ua":"chrome","variation":"%2528not%2Bset%2529"},"defaultSearchEngine":"google-b-1-d","defaultSearchEngineData":{"loadPath":"[addon]google@search.mozilla.org","name":"Google","origin":"default","submissionURL":"https://www.google.com/search?client=firefox-b-1-d&q="}},"profile":{"creationDate":18943,"firstUseDate":18943},"addons":{"activeAddons":{"{242af0bb-db11-4734-b7a0-61cb8a9b20fb}":{"version":"2.5.3","scope":1,"type":"extension","updateDay":19243,"isSystem":false,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"The fastest and safest web browsing experience.","name":"Malwarebytes Browser Guard","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":18982,"signedState":2},"formautofill@mozilla.org":{"version":"1.0.1","scope":1,"type":"extension","updateDay":19418,"isSystem":true,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":null,"name":"Form Autofill","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":18934},"pictureinpicture@mozilla.org":{"version":"1.0.0","scope":1,"type":"extension","updateDay":19418,"isSystem":true,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Fixes for web compatibility with Picture-in-Picture","name":"Picture-In-Picture","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":18934},"screenshots@mozilla.org":{"version":"39.0.1","scope":1,"type":"extension","updateDay":19268,"isSystem":true,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Take clips and screenshots from the Web and save them temporarily or permanently.","name":"Firefox Screenshots","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":18934},"webcompat@mozilla.org":{"version":"110.0.0","scope":1,"type":"extension","updateDay":19418,"isSystem":true,"isWebExtension":true,"multiprocessCompatible":true,"blocklisted":false,"description":"Urgent post-release fixes for web compatibility.","name":"Web Compatibility Interventions","userDisabled":false,"appDisabled":false,"foreignInstall":false,"hasBinaryComponents":false,"installDay":18934}},"theme":{"id":"default-theme@mozilla.org","blocklisted":false,"description":"Follow the operating system setting for buttons, menus, and windows.","name":"System theme — auto","userDisabled":false,"appDisabled":false,"version":"1.3","scope":4,"foreignInstall":false,"hasBinaryComponents":false,"installDay":18943,"updateDay":18943},"activeGMPlugins":{"gmp-gmpopenh264":{"version":"1.8.1.2","userDisabled":false,"applyBackgroundUpdates":1},"gmp-widevinecdm":{"version":"4.10.2449.0","userDisabled":false,"applyBackgroundUpdates":1}}},"experiments":{"pin-to-taskbar-fox-doodle-en":{"branch":"control","type":"nimbus-nimbus","enrollmentId":"927742a7-306f-4e56-a8c1-a16e69b46756"},"pocket-newtab-spocs-cache-rollout":{"branch":"rollout","type":"nimbus-rollout","enrollmentId":"c15a4165-45af-48d4-962e-2698d2f1fb9f"},"new-tab-interactions-aa-test":{"branch":"treatment-a","type":"nimbus-nimbus","enrollmentId":"e8b8cf53-1ede-44cc-9637-b5ff6e263bc3"},"bug-1712189-rollout-keep-firefox-up-to-date-even-when-it-is-not-ru-release-90-94":{"branch":"active","type":"normandy-prefrollout","enrollmentId":"81f55a94-9ffe-4708-9559-b666da5b98b2"}}} Throttleable: 1 TotalPageFile: 58525270016 TotalPhysicalMemory: 34273705984 TotalVirtualMemory: 140737488224256 URL: about:home UptimeTS: 1036.74905 Vendor: Mozilla Version: 110.0 Winsock_LSP: MSAFD Tcpip [TCP/IP] : 2 : 2 : 1 : 6 : 0x20066 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : e70f1aa0-ab8b-11cf-8ca3-00805f48a192

MSAFD Tcpip [UDP/IP] : 2 : 2 : 2 : 17 : 0x20609 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : e70f1aa0-ab8b-11cf-8ca3-00805f48a192 
MSAFD Tcpip [RAW/IP] : 2 : 2 : 3 : 0 : 0x20609 : 0xc : %SystemRoot%\system32\mswsock.dll :  : e70f1aa0-ab8b-11cf-8ca3-00805f48a192 
MSAFD Tcpip [TCP/IPv6] : 2 : 23 : 1 : 6 : 0x20066 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : f9eab0c0-26d4-11d0-bbbf-00aa006c34e4 
MSAFD Tcpip [UDP/IPv6] : 2 : 23 : 2 : 17 : 0x20609 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : f9eab0c0-26d4-11d0-bbbf-00aa006c34e4 
MSAFD Tcpip [RAW/IPv6] : 2 : 23 : 3 : 0 : 0x20609 : 0xc : %SystemRoot%\system32\mswsock.dll :  : f9eab0c0-26d4-11d0-bbbf-00aa006c34e4 
AF_UNIX : 2 : 1 : 1 : 0 : 0x20026 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : a00943d9-9c2e-4633-9b59-0057a3160994 
RSVP TCPv6 Service Provider : 2 : 23 : 1 : 6 : 0x22066 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9d60a9e0-337a-11d0-bd88-0000c082e69a 
RSVP TCP Service Provider : 2 : 2 : 1 : 6 : 0x22066 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9d60a9e0-337a-11d0-bd88-0000c082e69a 
RSVP UDPv6 Service Provider : 2 : 23 : 2 : 17 : 0x22609 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9d60a9e0-337a-11d0-bd88-0000c082e69a 
RSVP UDP Service Provider : 2 : 2 : 2 : 17 : 0x22609 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9d60a9e0-337a-11d0-bd88-0000c082e69a 
Hyper-V RAW : 2 : 34 : 1 : 1 : 0x20026 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 1234191b-4bf7-4ca7-86e0-dfd7c32b5445 
MSAFD L2CAP [Bluetooth] : 2 : 32 : 1 : 256 : 0x20006 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9fc48064-7298-43e4-b7bd-181f2089792a 
MSAFD RfComm [Bluetooth] : 2 : 32 : 1 : 3 : 0x20026 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9fc48064-7298-43e4-b7bd-181f2089792a

XPCOMSpinEventLoopStack: default: nsThread::Shutdown: BitsCommander useragent_locale: en-US

This report also contains technical information about the state of the application when it crashed.

Two updates ago, I had an issue where if I used any Google web products, I had weird network problems that just didn't go away (4000ms ping spikes every 5 packets). I noticed it was only when I was using Firefox, so i tried disabling add-ons and extensions, it still happened. I opened it in safe mode, it still happened. I tried using Chrome and Edge, both did not cause issues.

I reset my Firefox completely (There was some custom CSS to put tabs on bottom, where they belong) and it was perfectly fine! No issues! Everything was great for a few days!

Then you guys updated things again... and it was back... so I reset my Firefox again, and even straight out of the box, its still causing the issue, but now only when using google products, with or without add-ons, there is no custom CSS anymore either.

I do not know why its an issue, but it is, and it is ONLY with Firefox, and I really do not want to switch to Chrome or Edge... It also persists after Google is closed, until I restart Firefox.

I am unsure of specifically why this is happening now, but it is a MAJOR problem for me

Firefox keeps attempting to access a web site with an unwanted application. The site is mv.outbrain.com and my virus software keeps asking to block the site. The popup is now becoming a nuisance how do I stop it or delete the reference to it

It only happens in Firefox. I can't open any website on Firefox , even google.com . However, the following link is what opens instead : "http://www1.cdnsure.com/?tm=1&subid4=1677529420.0141530000&KW1=Google%20Cloud%20CDN&KW2=CDN%20Solutions&KW3=CDN%20Video%20Provider&searchbox=0&domainname=0&backfill=0"

idk what's that "www1.cdnsure.com" website .

Hi, I'm using Windows 10 and no malware or anything detected by my primary AV, bitdefender. I also tried with AVG but same results. Website works normally for about 5 seconds and then automatically redirect to http://www1.cdnsure.com/?tm=1&subid4=XXXXXXXXXXX=CDN%20Network&KW2=CDN%20Performance%20Monitoring&KW3=CDN%20Video%20Streaming&searchbox=0&domainname=0&backfill=0

(XXXXX are random numbers. I just replaced just to make sure nothing personal is there.)

Chrome, Edge and others works normally. Tried skip redirect extension, but no use. Tried VPN, tunneling, but same results. I don't care much about security. So if there is a way to stop redirecting part, please help.

FF is my main browser and I don't want to reset or reinstall.

I am using Firefox 102.8.0esr on openSUSE Leap 15.4. Two days ago Firefox stopped playing video clips on websites, notably BBC News and Facebook. On BBC News I get the error message "The content is not available in a compatible codec" but elsewhere just "video cannot be played". I have checked that the same video clips can be played without a problem in Google Chrome

OS version: Ubuntu 22.04.1 LTS (jammy), 64-bit (amd64, x86_64). Firefox version: 110.0 (64-bit) (NOTE: the issue was noticed with version 109.0, too)

Firefox package was installed on Ubuntu through 'APT', using the Mozilla Team repository (https://ppa.launchpadcontent.net/mozillateam/ppa/ubuntu/). It caught my attention that an excessive amount of Firefox related 'DENIED' AppArmor log messages is generated during the browser activity.

According to messages, Firefox is occasionally denied read access to '/sys/devices/' area and read/write access to 'oom_score_adj' target in '/proc/'. Could somebody clarify why would that access be required for regular browser operations? I'm a bit puzzled as I haven't noticed anything similar with the older Ubuntu and Firefox versions. A complete suppression of those messages is also an option as long as there's no negative impact on application's performance.

I already posted this question to Ubuntu forum but seems like nobody there could provide an explanation. I'd appreciate any input or hint.

Following is the sample of referred log messages:

---SNIP--- [Fri Feb 24 19:14:50 2023] audit: type=1400 audit(1674000890.813:39): apparmor="DENIED" operation="capable" profile="firefox" pid=2231 comm="firefox" capability=21 capname="sys_admin"

[Fri Feb 24 19:14:50 2023] audit: type=1400 audit(1674000890.877:40): apparmor="DENIED" operation="open" profile="firefox" name="/sys/devices/pci0000:00/0000:00:02.0/revision" pid=2235 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

[Fri Feb 24 19:14:50 2023] audit: type=1400 audit(1674000890.877:41): apparmor="DENIED" operation="open" profile="firefox" name="/sys/devices/pci0000:00/0000:00:02.0/config" pid=2235 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

[Fri Feb 24 19:14:50 2023] audit: type=1400 audit(1674000890.877:42): apparmor="DENIED" operation="open" profile="firefox" name="/sys/devices/pci0000:00/0000:00:02.0/revision" pid=2235 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

[Fri Feb 24 19:14:50 2023] audit: type=1400 audit(1674000890.877:43): apparmor="DENIED" operation="open" profile="firefox" name="/sys/devices/pci0000:00/0000:00:02.0/config" pid=2235 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

[Fri Feb 24 19:14:50 2023] audit: type=1400 audit(1674000890.885:44): apparmor="DENIED" operation="open" profile="firefox" name="/sys/devices/pci0000:00/0000:00:02.0/revision" pid=2235 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

[Fri Feb 24 19:14:50 2023] audit: type=1400 audit(1674000890.885:45): apparmor="DENIED" operation="open" profile="firefox" name="/sys/devices/pci0000:00/0000:00:02.0/config" pid=2235 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

[Fri Feb 24 19:14:50 2023] audit: type=1400 audit(1674000890.885:46): apparmor="DENIED" operation="open" profile="firefox" name="/sys/devices/pci0000:00/0000:00:02.0/revision" pid=2235 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0

[Fri Feb 24 19:14:50 2023] audit: type=1400 audit(1674000890.885:47): apparmor="DENIED" operation="open" profile="firefox" name="/sys/devices/pci0000:00/0000:00:02.0/config" pid=2235 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0 . . . . . . [Fri Feb 24 19:16:22 2023] audit: type=1400 audit(1674000983.040:56): apparmor="DENIED" operation="open" profile="firefox" name="/proc/2347/oom_score_adj" pid=2231 comm="firefox" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000

[Fri Feb 24 19:16:35 2023] audit: type=1400 audit(1674000995.296:57): apparmor="DENIED" operation="open" profile="firefox" name="/proc/2347/oom_score_adj" pid=2231 comm="firefox" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000

[Fri Feb 24 19:16:39 2023] audit: type=1400 audit(1674000999.280:58): apparmor="DENIED" operation="open" profile="firefox" name="/proc/2347/oom_score_adj" pid=2231 comm="firefox" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000

[Fri Feb 24 19:16:41 2023] audit: type=1400 audit(1674001001.768:59): apparmor="DENIED" operation="open" profile="firefox" name="/proc/2455/oom_score_adj" pid=2231 comm="firefox" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000

[Fri Feb 24 19:16:41 2023] audit: type=1400 audit(1674001001.768:60): apparmor="DENIED" operation="open" profile="firefox" name="/proc/2458/oom_score_adj" pid=2231 comm="firefox" requested_mask="w" denied_mask="w" fsuid=1000 ouid=1000 ---SNIP---

I've been using Firefox browser for over a decade to do university business (e.g., submit grades, internal proposal review processing and approval, etc.). But since December, I am having catastrophic failures. Sometimes with an error message, sometimes just getting no response at all when submitting information in a browser-based university application. And yet, I can complete those functions when I immediately go to Chrome (once I remember that that might be a problem). I really don't want to use Chrome. Is there a change in Firefox (including something which I can change some settings in my browser to counteract), or a change in our university's software making Firefox incompatible? One returned error today was "Request Header Fields Too Large. The server refused this request because the request header fields are too large." [PS, I had to type this all over when I tried to share data with you about my system -- I had to click on "troubleshoot" information, which lost all the data I had previously entered... Sigh....]

Firefox always uses excessive GPU memory when I watch video and livestream. about:memory shows that the explict GPU memory allocation is only about 200 MB but in the task manager the GPU memory usage is 1GB, and the latter doesn't decrease even if I close the tab. I suspect that this is a memory leak. I searched for Bugzilla and found a similar issue that has been existing for years: https://bugzilla.mozilla.org/show_bug.cgi?id=1386177

Hi there. My scroll wheel on my mouse stopped working. Only way to scroll is to press Ctrl+Shift and then use scroll wheel, which makes it work fine. But i would prefer to not have to press down Ctrl+Shift to scroll. This problem is only happening on Firefox and no other browser or program on my computer. Do you know any solutions?

Mouse scroll wheel not scrolling web page after installing Firefox version 110. I installed an older version, 98, and it worked again, but that version would not use my profile and it seemed to update itself to 110 and then scrolling was broken again. Am I alone or is everyone broken at version 110?