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Firefox close randomly and forget my open tabs

My firefox has been closing while I am away from my computers. I have a few computer running linux (Ubuntu 24.04) and one in mac osx (Big Sur). Usually, I can start firef… (читати далі)

My firefox has been closing while I am away from my computers. I have a few computer running linux (Ubuntu 24.04) and one in mac osx (Big Sur). Usually, I can start firefox and it will remember my tabs which is annoying but still manageable. However, once in a while, (which happened yesterday), all the firefox closed on all the computers and it forgot my tabs when I start firefox again.

I have already set app.update.auto to false on all of the firefox instance prior to this incident to avoid firefox update would close out firefox itself. So if anyone has any idea of what to check to see why firefox keep closing and/or why once in a while it will not remember my tabs, I would really appreciate it.

Open 1 54

Firefox keeps crashing

I get the message: We're Sorry Firfox had a problem and crashed. We'll try to restore your tabs and windows. To help us diagnose and fix this problem, you can send us a… (читати далі)

I get the message: We're Sorry Firfox had a problem and crashed. We'll try to restore your tabs and windows. To help us diagnose and fix this problem, you can send us a crash report. I sent the crash report multiple times.

I added a screenshot of my MacBook Air info.

The details are: AvailablePhysicalMemory: 1700704256 AvailableSwapMemory: 0 BackgroundTaskMode: 0 BuildID: 20260216153405 CrashTime: 1773448580 DOMFissionEnabled: 0 DOMIPCEnabled: 0 HeadlessMode: 0 InstallTime: 1772203700 LastStartupWasCrash: 1 MacAvailableMemorySysctl: 75 MacMemoryPressure: Normal MacMemoryPressureCriticalTime: Unset MacMemoryPressureNormalTime: 1773448580 MacMemoryPressureSysctl: 1 MacMemoryPressureWarningTime: Unset MozCrashReason: MOZ_CRASH(NS_ERROR_OMNIJAR_OR_DIR_MISSING) ProductID: {ec8030f7-c20a-464f-9b0e-13a3a9e97384} ProductName: Firefox PurgeablePhysicalMemory: 248750080 ReleaseChannel: release SafeMode: 0 SecondsSinceLastCrash: 15923 StartupCacheValid: 0 StartupCrash: 1 StartupTime: 1773448579 SubmittedFrom: Client Throttleable: 1 TotalPhysicalMemory: 8589934592 UptimeTS: 1.104864563 Vendor: Mozilla Version: 148.0 This report also contains technical information about the state of the application when it crashed.

Moderator note: This question has been edited to fill the Firefox version field (based on the info submitted).

Open 6 182

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… (читати далі)

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

Videos in full screen cause the system to freeze

This has started a few days ago. I'm running Firefox Desktop on Windows 11. Browsing is perfectly normal, until I try to watch a video in full screen mode. It plays norma… (читати далі)

This has started a few days ago. I'm running Firefox Desktop on Windows 11. Browsing is perfectly normal, until I try to watch a video in full screen mode. It plays normally for a few seconds and then my whole system freezes, with no response to any action except for hard reset. This has never happened to me before, and all other browsers I try do not demonstrate the same problem. Is there any solution other than changing browser permanently?

Open 3 128

Crash on wake from Sleep

Following https://support.mozilla.org/en-US/kb/troubleshoot-firefox-crashes-closing-or-quitting Crash Reports (Newest to Oldest, starting with troubleshoot mode: https://… (читати далі)

Вирішено 5 210

Why constant freezing when I try to get onto a Google Account and other websites either with passkey or other?

When I try to go into my google account for any reason and a few other websites, it will say use passkey or try another way. I have done both several times and Firefox A… (читати далі)

When I try to go into my google account for any reason and a few other websites, it will say use passkey or try another way. I have done both several times and Firefox ALWAYS FREEZES and I have to force quit. I have reinstalled Firefox, gotten rid of all cookies and cache, gotten rid of extensions and everything I could do from the help website but nothing seems to work. I have also reinstalled Firefox but the same thing keeps happening. I need HELP!

Open 54

Firefox having several issues after "refresh"

Not sure if "browse" is the correct topic but here we go: After a random crash (I don't remember the details, been a while) I've "refreshed" Firefox. Following that I st… (читати далі)

Not sure if "browse" is the correct topic but here we go:

After a random crash (I don't remember the details, been a while) I've "refreshed" Firefox. Following that I started to have some problems with Google Meet. Haven't had any for years and suddenly when i open Google Meet (working from home and using Google Meet as an online meeting platform daily), everything becomes unresponsive. I can't change tab, cannot close Firefox from the close button, nothing. I open the Windows Task Manager and End Task manually to close the window so I can restart the browser. After restarting Firefox and launch Google Meet, it doesn't crash.

The other problem is when I try to watch something on Netflix, I hear the sound, see the subtitles but the video content is not present. It's just black screen with UI on it. Yes, I checked the DRM setting and no, other streaming services that I use don't have this problem. I can bypass this by launching Firefox in troubleshoot mode but I want to use my extensions. I even tried to enable them one-by-one to see if anyone causing problems but even when I disable all of my extensions like in the troubleshoot mode I'm still having the same problem.

I tried several solutions that I found on reddit etc. but nothing worked so far. I also re-installed Firefox and nothing changed.

Please help me before I lose my mind (:

Open 1 109

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… (читати далі)

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

Windows 2026-02 Preview Update (KB5077241) causes Acer laptop to crash when firefox opens

Windows 2026-02 Preview Update (KB5077241) causes Acer laptop to crash when firefox opens when computer is started. Only on this laptop, other computers are unaffected. F… (читати далі)

Windows 2026-02 Preview Update (KB5077241) causes Acer laptop to crash when firefox opens when computer is started. Only on this laptop, other computers are unaffected. Firefox is the newest version and like mentioned, all other computers run the same security programs and vpn. The windows update needed to be uninstalled on the Acer laptop for it to operate correctly.

Open 144

Firefox crashes

Dear Support Team, I am currently experiencing a very frustrating issue with Firefox. I have been using it for many years, and it has always been my preferred and most co… (читати далі)

Dear Support Team,

I am currently experiencing a very frustrating issue with Firefox. I have been using it for many years, and it has always been my preferred and most comfortable browser for my daily work. I depend on it heavily, as all my bookmarks and other important information are stored there.

Over the past few weeks, Firefox has been crashing more than ten times a day. I have already tried all the troubleshooting steps suggested in forums and through AI-based support, but none of them have resolved the problem. I also attempted to install and use the Firefox Beta version, but the issue still continues.

In our environment, other users and devices are not encountering this problem, so it does not appear to be related to internal firewall or antivirus restrictions.

Could you please assist me in troubleshooting this issue? I have attached the error screen that appears after the crash along with the crash report for your reference.

No reports shows on about:crashes

Best regards

Open 117

Firefox Crash

I’m currently facing a very frustrating issue with Firefox. I have been using Firefox for many years, and it is my favorite and most comfortable web browser for my day-to… (читати далі)

I’m currently facing a very frustrating issue with Firefox. I have been using Firefox for many years, and it is my favorite and most comfortable web browser for my day-to-day work. I rely on it heavily as all my bookmarks and other important details are saved there.

However, over the past few weeks, Firefox has been crashing more than 10 times a day. I have already tried all the troubleshooting steps available in the forums and through AI support, but none of them have resolved the issue. I also tried installing and using the Firefox Beta version, but the problem still persists.

In our environment, other users and devices are not experiencing this issue, so it does not appear to be related to internal firewall or antivirus restrictions.

Could you please help me troubleshoot this issue? I am attaching the error screen that appears after the crash along with the crash report for you

Open 9 144

Firefox 148.0 (64-bi crashing

Hello Firefox community, Has anyone else been experiencing issues over the past week where Firefox suddenly closes on its own and then reopens with a message saying that … (читати далі)

Hello Firefox community,

Has anyone else been experiencing issues over the past week where Firefox suddenly closes on its own and then reopens with a message saying that something unexpected happened, along with an option to restore previous pages?

I’ve already tried reinstalling the browser, but the problem is still happening. Are there any known issues or suggestions on how to fix this? Any guidance would be greatly appreciated.

Thank you!

Open 1 45