Showing questions tagged:

Firefox suddenly opens about:processes tab and then closes itself

Hello everyone, yesterday I got quite a scare. While Firefox was open, a new tab briefly appeared showing the page about:processes, and immediately afterwards the browser… (read more)

Hello everyone,

yesterday I got quite a scare. While Firefox was open, a new tab briefly appeared showing the page about:processes, and immediately afterwards the browser closed itself on its own.

At the same time, Chrome was open in the background. When I clicked on Chrome, a prompt appeared asking whether I wanted to allow changes to be made to the system (the typical UAC prompt). However, I’m not entirely sure if this was actually triggered by Chrome or possibly by another application.

I clicked “No” on the UAC prompt and immediately unplugged my keyboard. I recently started using an ASUS ROG Falcata, which is connected via USB.

After that, I ran a virus scan with Windows Defender — it didn’t find anything. I also ran AdwCleaner, which also came up clean.

At first, I suspected the ASUS ROG Falcata (I’ve only been using it for a few days), since it’s almost like a small computer itself and can execute macros, patterns, etc. I was worried about a possible firmware bug or something worse. At the moment, I’m honestly hesitant to plug it back in and am using an old Dell keyboard instead.

Importantly, I wasn’t pressing any keys at the time of the incident.

Now I’m quite unsure what could have caused this.

Is there any way to trace this in Firefox (e.g., via logs)?

And is there any (event) log where I could check what triggered the UAC prompt?

One more thing I noticed: I shut down the PC afterward and turned it back on later that evening. Everything booted normally and is still running fine today. However, Firefox updated itself yesterday from version 148.2 to 149. Maybe that was somehow related (though there’s no indication in the Firefox update history that anything failed or similar).

Open 4 72

mozilla crashing

mozilla keeps crashing almost on every website (says the tab has crashed). I checked, mozila is up to date, all extensions removed, no viruses or spyware, and it is crash… (read more)

mozilla keeps crashing almost on every website (says the tab has crashed). I checked, mozila is up to date, all extensions removed, no viruses or spyware, and it is crashing in troubleshoot mode as well.

Also few times a day says "your device ran in to a problem and needs to restart). Please advise what to do? Here is a submitted crash reports:

p-878c606d-9511-4e2d-8463-5bcd40260113 13-Jan-26, 11:02 View bp-b92cc3c4-aa94-4a34-b0e3-bbb4a0260113 13-Jan-26, 11:02 View bp-a923ab00-9c5a-497d-b879-5849a0260113 13-Jan-26, 11:02 View bp-bd9b3fd4-9e88-43de-84d4-8b6210260113 13-Jan-26, 11:02 View bp-ed987df9-1563-4285-a6c3-da7290260113 13-Jan-26, 11:02 View bp-5d3d4a2e-6a35-41e3-b00e-0e8b60260113 13-Jan-26, 11:02 View bp-40bfaa75-2f10-4b5a-8d8c-b593d0260113 13-Jan-26, 11:01 View bp-8ddae55f-953d-48bc-ab42-6c21f0260113 13-Jan-26, 11:01 View bp-55bec64b-f2cf-4dd3-8cc4-2201b0260113 13-Jan-26, 11:01 View bp-c0805bea-737b-48de-ac3c-698550260113 13-Jan-26, 11:01 View bp-dc39e12a-d135-409c-b7ff-2f7440260113 13-Jan-26, 11:01 View bp-98bb14f4-55ba-4791-8958-924830260113 13-Jan-26, 11:01 View bp-6d26a731-7b7e-4487-a929-ec6970260113 13-Jan-26, 09:28 View bp-f056e88d-b117-41e7-92ce-6b0cb0260112 12-Jan-26, 16:07 View bp-613d6f88-4ac7-4586-9b6e-c0d6c0260112 12-Jan-26, 16:06 View bp-7220e233-4a4b-408f-b2ff-82a540260112 12-Jan-26, 16:05 View

Open 1 90

Since your latest update, each time I open a new tab in Firefox it crashes. How do I fix this?

Since the latest Firefox latest update yesterday (02/24/2026), each time I try to open a new tab in Firefox it crashes. I get a "gah, your tab has crashed" message but w… (read more)

Since the latest Firefox latest update yesterday (02/24/2026), each time I try to open a new tab in Firefox it crashes. I get a "gah, your tab has crashed" message but when I hit the "restore" link nothing happens. How do I fix this at my end? Thank you.

Open 1 99

Capturing Logs after Running Troublshooting Mode

I had an issue where my browser disappeared. Here are specifics for my installation. Name Firefox Version 142.0.1 Build ID 20250827004350 Distribution ID raspberrypi… (read more)

I had an issue where my browser disappeared. Here are specifics for my installation.

Name Firefox Version 142.0.1 Build ID 20250827004350 Distribution ID raspberrypios User Agent Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0 OS Linux 6.12.62+rpt-rpi-2712 #1 SMP PREEMPT Debian 1:6.12.62-1+rpt1~bookworm (2026-01-19)


I relaunched and then restored previous session. After that, I searched open tabs, but when I selected a tab that was reported to be opened,  it was not restored. I went to troubleshooting mode and it worked fine suggesting some issue with an extension.  What, if any logs could I capture to help debug? thanks
Open 1 108

why does firefox keep crashing???

Firefox is CONSTANTLY crashing now and I'm about ready to switch to another browser unless someone can give me a reason to stay. Moderator note: This question has been e… (read more)

Firefox is CONSTANTLY crashing now and I'm about ready to switch to another browser unless someone can give me a reason to stay.

Moderator note: This question has been edited to clarify OS version (based on crash reports).

Open 5 117

Activate Firefox crashreporter

I'm reading https://support.mozilla.org/en-US/kb/mozillacrashreporter#w_when-firefox-crashes Firefox crashes but I have never seen the crash reporter on my 6.18.10-200.fc… (read more)

I'm reading https://support.mozilla.org/en-US/kb/mozillacrashreporter#w_when-firefox-crashes

Firefox crashes but I have never seen the crash reporter on my 6.18.10-200.fc43.x86_64 Fedora 43 system with budgie-desktop 10.9.3

Is the crash reporter discontinued?

Open 1 126

Crashing firefox on last update

I've got constant crashes jn last update Firefox 148.0.2 (Desktop). Often it happens when Google Meets launched in browser and i started switch between tabs or another ap… (read more)

I've got constant crashes jn last update Firefox 148.0.2 (Desktop). Often it happens when Google Meets launched in browser and i started switch between tabs or another applications. In Widows logs i found this error: Имя сбойного приложения: firefox.exe, версия: 0.0.0.0, метка времени: 0x00000000 Имя сбойного модуля: unknown, версия: 0.0.0.0, метка времени: 0x00000000 Код исключения: 0xc00000fd Смещение ошибки: 0x00007ffce9d07286 Идентификатор сбойного процесса: 0x0x3F64 Время запуска сбойного приложения: 0x0x1DCB6A7BAE6121F Путь сбойного приложения: C:\Program Files\Mozilla Firefox\firefox.exe Путь сбойного модуля: unknown Идентификатор отчета: 1a851f87-1b94-4270-8d86-a6850200a62b Полное имя сбойного пакета: Код приложения, связанного со сбойным пакетом:

Installed system Windows 11

Open 1 126

my mozilla crash on my windows 10 repeatedly

AdapterDeviceID: 0x9bc8 AdapterDriverVersion: 30.0.101.3111 AdapterSubsysID: 86941043 AdapterVendorID: 0x8086 AvailablePageFile: 7602827264 AvailablePhysicalMemory: 54825… (read more)

AdapterDeviceID: 0x9bc8 AdapterDriverVersion: 30.0.101.3111 AdapterSubsysID: 86941043 AdapterVendorID: 0x8086 AvailablePageFile: 7602827264 AvailablePhysicalMemory: 5482582016 AvailableVirtualMemory: 138522402320384 BackgroundTaskMode: 0 BuildID: 20260216153405 CPUMicrocodeVersion: 0x100 ContentSandboxCapable: 1 ContentSandboxLevel: 9 ContentSandboxWin32kState: Win32k Lockdown enabled -- default value is true CrashTime: 1772717547 DOMFissionEnabled: 1 DOMIPCEnabled: 1 EMCheckCompatibility: true GPUProcessLaunchCount: 6 GPUProcessStatus: Running GpuSandboxLevel: 2 GraphicsCriticalError: |[0][GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=8.27141) |[16]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=23.7756) |[17]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=23.7756) |[18]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=23.7756) |[19]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=23.7757) |[20][GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=27.6517) |[21]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=27.6518) |[22]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=27.6518) |[23]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=27.6518) |[24]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=27.6518) |[25]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=27.6518) |[26]CP+[GFX1-]: IPC Channel is already torn down unexpectedly

(t=27.6543) |[27]CP+[GFX1-]: IPC Channel is already torn down unexpectedly
(t=27.6543) |[28][GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=31.3125) |[14][GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=23.7753) |[15]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=23.7756) 

HeadlessMode: 0 InstallTime: 1772714308 LastStartupWasCrash: 0 LauncherProcessState: 0 ModuleSignatureInfo: {"Mozilla Corporation":["firefox.exe","xul.dll","gkcodecs.dll","nss3.dll","freebl3.dll","softokn3.dll","mozglue.dll","lgpllibs.dll"],"Microsoft Windows":["Windows.Security.Integrity.dll","ondemandconnroutehelper.dll","wscapi.dll","linkinfo.dll","explorerframe.dll","dataexchange.dll","wshbth.dll","twinapi.dll","msimg32.dll","winmm.dll","AudioSes.dll","dbgcore.dll","dbghelp.dll","winrnr.dll","pnrpnsp.dll","wininet.dll","directmanipulation.dll","DWrite.dll","FWPUCLNT.DLL","urlmon.dll","Windows.UI.Immersive.dll","iertutil.dll","Windows.Globalization.dll","winhttp.dll","OneCoreUAPCommonProxyStub.dll","BCP47mrm.dll","InputHost.dll","textinputframework.dll","rasadhlp.dll","srvcli.dll","Windows.UI.dll","NapiNSP.dll","Bcp47Langs.dll","ktmw32.dll","wsock32.dll","MMDevAPI.dll","mscms.dll","ColorAdapterClient.dll","npmproxy.dll","dhcpcsvc6.DLL","dhcpcsvc.dll","twinapi.appcore.dll","version.dll","winnsi.dll","WindowManagementAPI.dll","avrt.dll","taskschd.dll","netprofm.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","dxgi.dll","ntmarta.dll","rsaenh.dll","IPHLPAPI.DLL","dnsapi.dll","netutils.dll","mswsock.dll","cryptsp.dll","CRYPTBASE.dll","wldp.dll","winsta.dll","ntasn1.dll","ncrypt.dll","msasn1.dll","devobj.dll","umpdc.dll","powrprof.dll","userenv.dll","sspicli.dll","profapi.dll","wintrust.dll","win32u.dll","bcrypt.dll","gdi32full.dll","cfgmgr32.dll","KERNELBASE.dll","ucrtbase.dll","crypt32.dll","msvcp_win.dll","bcryptPrimitives.dll","imm32.dll","rpcrt4.dll","user32.dll","nsi.dll","shlwapi.dll","imagehlp.dll","kernel32.dll","shell32.dll","setupapi.dll","SHCore.dll","sechost.dll","clbcatq.dll","ws2_32.dll","oleaut32.dll","combase.dll","advapi32.dll","gdi32.dll","msctf.dll","psapi.dll","ole32.dll","msvcrt.dll","ntdll.dll"],"Microsoft Windows Software Compatibility Publisher":["msvcp140.dll","VCRUNTIME140.dll","VCRUNTIME140_1.dll"]} NimbusEnrollments: 1-callout-contextual-chatbot-suggestion-treatment-a-rollout-v2:treatment-a-tab-switching-copy,ai-chatbot-page-summarization-mvp-treatment-a-callout-badge-rollout-v4:treatment-a-callout-badge,backgroundupdate-enable-unelevated-installations-rollout-3-release:enabled,client-side-sampling-of-performance-metrics:control,context-id-rotation-every-3-days:control,desktop-credit-card-autofill-global-enablement-rollout-release:creditcard-enable,desktop-release-rollout-show-relay-to-all-browsers-next-sign-up-modal-cta:next-sign-up-modal-cta,disable-enrollment-status-telemetry-for-firefox-desktop-via-nimbustelemetry:control,downsample-uptakeremotecontent-events-glean-feature:control,enable-nimbus-unenrollment-synchronization:control,encrypted-client-hello-fallback-mechanism:control,enforce-crlite-results-and-limit-use-of-ocsp-rollout:enforce,fast-udp-for-firefox-treatment-fast-udp-release-rollout:treatment-fast-udp,firefox-backup-feature-gradual-rollout:treatment,fx-accounts-ping-release-rollout-2:control,hnt-weather-with-location-selector-non-eu-expansion-asian-language-family:control,local-network-access-enablement-etp-stricr-147-148:lna-enabled,long-term-holdback-2026-growth-desktop:delivery,new-tab-149220260220204414-to-release-148:rollout,new-tab-content-ping-rest-of-world-rollout:treatment,pin-frequently-used-websites-promo-rollout-day-3-users-all-locales:rollout-branch,private-window-visual-refresh-rollout:control,rollout-sponsored-topsites-in-southeast-asia-and-hong-kong:control,set-to-default-hamburger-menu-rollout:treatment-c,smart-shortcuts-v3-lr2-no-lr-rollout:no-lr,unified-api-for-spocs-and-top-sites-controlled-rollout-for-release-133:control,upgraded-sidebar-rollout-without-messaging:rollout-treatment,vertical-tabs-promo-rollout-day-3-profiles-all-locales:treatment-a,visual-card-updates:updated,visual-search-rollout:google-lens-rollout,windows-ui-automation-release-rollout:rollout,enable-ohttp-for-mars-communications-on-release:control,introduce-search-on-new-tab-page-copy-in-countries-with-no-content-re-run:variant-a Notes: -L1000-W0000100-T1) DWrite? DWrite+ WR? WR+ ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox QuotaManagerStorageIsNetworkResource: 0 RDDProcessStatus: Running ReleaseChannel: release SafeMode: 0 SecondsSinceLastCrash: 2702 StartupCacheValid: 1 StartupCrash: 0 StartupTime: 1772717513 SubmittedFrom: Client SystemMemoryUsePercentage: 34 TelemetryEnvironment: {"build":{"applicationId":"{ec8030f7-c20a-464f-9b0e-13a3a9e97384}","applicationName":"Firefox","architecture":"x86-64","buildId":"20260216153405","version":"148.0","vendor":"Mozilla","displayVersion":"148.0","platformVersion":"148.0","xpcomAbi":"x86_64-msvc","updaterAvailable":true},"partner":{"distributionId":null,"distributionVersion":null,"partnerId":null,"distributor":null,"distributorChannel":null,"partnerNames":[]},"system":{"memoryMB":8022,"virtualMaxMB":134217728,"cpu":{"extensions":["hasMMX","hasSSE","hasSSE2","hasSSE3","hasSSSE3","hasSSE4_1","hasSSE4_2","hasAVX","hasAVX2","hasAES"]},"os":{"name":"Windows_NT","version":"10.0","locale":"en-US","servicePackMajor":0,"servicePackMinor":0,"windowsBuildNumber":19045,"windowsUBR":2006},"hdd":{"profile":{"model":null,"revision":null,"type":null},"binary":{"model":null,"revision":null,"type":null},"system":{"model":null,"revision":null,"type":null}},"gfx":{"DWriteEnabled":true,"ContentBackend":"Skia","Headless":false,"TargetFrameRate":60,"textScaleFactor":1,"adapters":[{"description":"Intel(R) UHD Graphics 630","vendorID":"0x8086","deviceID":"0x9bc8","subsysID":"86941043","RAM":0,"driver":"igdumdim64 igd10iumd64 igd10iumd64 igd12umd64 igdumdim32 igd10iumd32 igd10iumd32 igd12umd32","driverVendor":null,"driverVersion":"30.0.101.3111","driverDate":"6-9-2022","GPUActive":true}],"monitors":[{"screenWidth":1920,"screenHeight":1080,"defaultCSSScaleFactor":1,"contentsScaleFactor":1,"refreshRate":59,"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}}},"appleModelId":null,"hasWinPackageId":false,"sec":{"antivirus":["Microsoft Defender Antivirus"],"antispyware":null,"firewall":["Windows 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Throttleable: 1 TotalPageFile: 10424705024 TotalPhysicalMemory: 8411439104 TotalVirtualMemory: 140737488224256 URL: about:newtab UptimeTS: 34.7427152 UtilityProcessStatus: Running Vendor: Mozilla Version: 148.0 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

useragent_locale: en-US This report also contains technical information about the state of the application when it crashed.

Open 1 135

Firefox keep crashing when multiple windows is open while on google meet

my firefox keep crashing when i join google meet and i need to do multitask so i open another firefox windows(private or not) it always crash few second after, i have tri… (read more)

my firefox keep crashing when i join google meet and i need to do multitask so i open another firefox windows(private or not) it always crash few second after, i have tried the trouble shoot mode its still crashing, even the new windows from SSO request do trigger my firefox to crash. when the browser crash it does offer me to restore my session

Open 1 136