Firefox Community Forum

Firefox crashes all the time. Sometimes it makes me manually shut it down with a one-click dialogue box. Other times, it's a two click dialogue box where I click "close firefox" and then have to click again to close the box. This doesn't seem to change performance, but it's a bother. Is there a way for me to fix this?

Here is the current situation.

Firefox is consistently crashing in Windows 11, either a tab crash or the application itself. I'm not sure how to resolve it at this point. It was sufficiently bad that at first I assumed this was a problem with my Windows 11 installation, and did a complete reinstall of the OS followed by a fresh install of Firefox.

That did not resolve the problem. Firefox is still crashing.

I completely replaced the SSD assuming there was some kind of read/write problem between it and Firefox, did a clean install of Win11 and Firefox, and instead of porting my profile ported only my bookmarks and passwords into a new profile.

It's still happening. I don't know what to do at this point.

I have been using Google Messages in Firefox for over a year, and have never had any problem until the most recent Firefox update from Linux Mint. Google Messages loads on the tab, and everything seems fine. But when I click on a conversation on the left, it crashes as it's loading the conversation.

All of my software is up to date, i.e., no new software updates are indicated in the system tray (?) on the panel. Firefox info: mint-001 - 1.0 147.0.2 (64-bit)

System info: Linux Technodrome 6.8.0-100-generic #100-Ubuntu SMP PREEMPT_DYNAMIC Tue Jan 13 16:40:06 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux

 Host: Technodrome Kernel: 6.8.0-100-generic arch: x86_64 bits: 64
   compiler: gcc v: 13.3.0 clocksource: tsc
 Desktop: MATE v: 1.26.2 wm: marco v: 1.26.2 with: mate-panel
   tools: mate-screensaver vt: 7 dm: LightDM v: 1.30.0
   Distro: Linux Mint 22 Wilma base: Ubuntu 24.04 noble

Hopefully this gets fixed soon, because checking my messages using my PC saves so much time.

Thank you

HI Since the last update from Firefox. I am experiencing frequent and multiple crashes. so much so I have beenusing google chrome as alternative browser. It would appear to me that the "new" version is unstable. = Version 147.0.4 (64bit).

Do I go back the the previous version? and if so where is it.

Pete

There is a common error documented in https://support.mozilla.org/en-US/kb/firefox-already-running-not-responding but none of the solutions fix my problem.

I have signed out of my PC and mobile devices Done a complete uninstall of firefox on the Windows 11 machine Searched and removed ALL files on the drive associated with Firefox or Mozilla, including cache and temp Searched and removed ALL Firefox or Mozilla keys in the registry Checkdisk Used update to refresh the windows install Multiple reboots

and a fresh download and install of Firefox. And still get the "already running" error. If I wait long enough - several minutes - I will get the "crash report" screen as the background process finally ends.

Any suggestions?

I tried to purchase something on Amazon. When trying to log into my Amazon account it asks to perform 2Fa on my mobile or use a pass key. But neither option responds and Firefox is completely locked up - cannot tab, select menu options etc. I have to use the Apple Mac Force Quit screen to kill it. But when I open Firefox again, the same tabs appear and it's still locked up on the Amazon screen. Cannot use Firefox at all now, forced to use Chrome. How can you reset FF. so that it just opens a new screen?

My Firefox tabs crash repeatedly even when I tried opening them in Troubleshoot mode. When I play videos in the browser, there's this stuttering, buzzing noise while the sound lags, too. Usually it's tabs playing YouTube videos that crash, but I've also had tabs crash when I try to open completely unrelated websites. I've disabled hardware acceleration, repeatedly cleared my cache, and even tweaked some of my GPU throttling settings, but nothing seems to help.

Using Ubuntu 24.04.3 LTS with Firefox 147.0.3 (64-bit)

Firefox crashes when trying to access any banking website. Can get to the login page, but then firefox crashes and a crash report window comes up with quit or restart option. This has been going on since shortly after upgrading from 22.04 Ubuntu. Started with Firefox 147.0.1 and after upgrading to 147.0.3 did not fix the issue.

Started Firefox in Troubleshoot Mode and that works when going to the bank login page. Using Standard Theme and only extensions Windscribe - Free Proxy and Ad Blocker and DuckDuckGo. Disabled both and same result of crashing om bank log in pages.

I run Windscribe VPN through my separate subscription, but it doesn't matter if it is on or not. Banking websites (Keybank, Kinecta, Capital Group) still crash Firefox

Also crashes when trying to access Excellus BCBS log in page. Most other websites (news, sports, Amazon) are fine.

Searches on your support page yields ) results.

Please advise!!!

Hello dear Mozilla team,

It has come to my attention that it is the second time, that Firefox randomly restarts (crashes?) and as an consequence of it Loose all of my tab groups, which are really help-full to separate work and projects at work.

Is there something known about this behavior ?

Just to know if it is known why this happens. Or what should I keep in thoughts to prevent it....

Many thanks in advance.

Kind regards,

J.F. Calixto Zarate

I had to uninstall Firefox. I briefly added then removed an extension called "atlas speed dial". Since then, I haven't been able to get a tab to open. I uninstalled and reinstalled Firefox. It recognized that Firefox was on my pc before when it reinstalled. I had some tabs open and organized. I tried to recover tabs. I tried just using a new window and opening new tabs. Finally I just uninstalled for good, unless someone can tell me how to fix this issue. I'm using two other browsers. Luckily, when I installed another browser I'm using, I decided to temporarily set the new one as my default. I've setup several shortcuts and organized my desktop since then. So all of the shortcuts work through the other browser. But, I'd really like to still be able to use Firefox and especially would like to restore my open tab organization.

Hello. The browser will start fine and run for most of the day. I haven't made any known changes to the PC. At some point the browser will crash for all tabs and all windows. Any attempt to refresh goes to the screen as seen in the attached image. The "Restore This Tab" button does not work. I have to close all Firefox windows. Then the browser will work again.

I'm using an Alien computer. Windows 11. Everything is up to date. Firefox version 145.0.2 (64-bit)

Thank you.

I tried several things, but nothing helped so far. I did an offline-scan with Windows Defender, I opened FF in troubleshoot mode, cleared cache etc. I got the following crash-ID:

bp-7a77a8ad-7637-4fba-bd20-9e4730251209

Maybe someone here is able to help me. Thanks in advance.

For the last two days, I have been ubable to access settings (X,). When I click the settings cog in th toolbar, thr toolbar grays out. I have also tried to access settings using the Hamburger Menu, clicking on settings, with the same result. I have clicked on Firefox in the menu tab, same result.

I have closed and restarted Firefox, with the same result.

Additionally, I can only close Firefox by force quitting. I don't know if the two are connected.

TIA. Keith

Recently i have a issue on firefox that it has been crashing without any warning or signs and these crashes are absolutely random no pattern upto my pov. IDK whats the issue

Since the last update I’m able to login to my banking websites but there are certain functions when I’m not able to do. Specifically I am unable to open the particular page that allows me to view my previous bank statements and download them. I get a crash problem each time. I bank with Navy Federal credit Union. And One AZ credit union I was able to access these pages using Google Chrome. I am submitting this through my phone browser because using the PC browser will not open your feedback pages. I get a page crash with that also.

Every time I attempt to open any tab on my laptop computer I get the following message.

Gah. Your tab just crashed. We can help! Choose Restore this Tab to reload the page.

(Two buttons)

Close Tab Restore This Tab

Unable to restore tab. It is impossible to use the Firefox with this upgrade. Looks like I need to find another browser.

Terry Knight [email removed]@att.net

this feature absolutely DOES NOT WORK on ANY Firefox desktop browser on MULTIPLE machines I have tried - and actually I'm pretty sure I can say the same thing about the ANDROID app too?

I can confirm EVERY SITE I have trouble signing in using Passkey on Firefox I can SUCCESSFULLY sign into on Chrome - every single time - the issue is clearly the BROWSER

worse still, it often COMPLETELY CRASHES Firefox and I have to forcibly KILL the process and restart Firefox, after even ATTEMPTING to use this feature

I have tried it on M1 Macbook Pros, on Ubuntu desktops (24.04 LTS) and also on Android

right now I am typing this in on a Firefox I literally just had to Force Quit and restart on a Mac - build 147.0.2 (aarch64)