Forum der Gemeinschaft Firefox

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

Just got my repaired laptop back. Windows Home 23H2 build 22631.6199. Installed Firefox, synched my account. Firefox or a firefox tab have crashed 19 times in the last 3 days since the fresh install.

5 most recent submitted

Report ID Date Submitted bp-d5cc4d87-e2dd-4149-93ec-d91000260401 4/1/2026, 10:39 AM View bp-09b6f228-0b9e-4827-85e7-108df0260401 3/31/2026, 7:43 PM View bp-2edc9f85-37b3-4a37-8a1b-ed6390260331 3/31/2026, 11:03 AM View bp-df98c40c-38d4-4d41-ad0a-104430260331 3/31/2026, 10:59 AM View bp-5a3b7f96-699e-4096-98c4-411ab0260402 4/2/2026, 9:51 AM

Actually crashed while preparing this message. What to do?

Hello,

I would like to report a potential bug in Mozilla Firefox related to recent updates.

After downloading a PDF file and opening it directly in the browser, the tab crashes. Following this crash, it becomes impossible to open any files (regardless of file type) within the browser — every attempt results in another tab crash. The crash report cannot be reviewed, as the tab fails immediately and can only be closed.

As a temporary workaround, changing the default PDF handler to an external application prevents the issue. However, this is not a viable solution for us, since some of our internal systems require PDFs to open directly in the browser after download.

We have verified that this issue does NOT occur in version 148.0.2 — everything works correctly there. However, after updating to version 149.0, the problem reappears consistently. Firefox also automatically updates after synchronization, making it difficult to remain on a stable version.

According to the release notes, there were changes in PDF handling in recent updates, so this may be related to a technical regression.

Could you please investigate this issue or advise on a proper fix or workaround?

Best regards, Daniel Mazur VanityStyle IT Specialist

why does my fire fox keep crashing the screen goes black i get tab just crashed already updated and cleaned my ram and did everything i could think of and still crashing am still crashing on troubleshooting mode

The dialogue box says "The application is exiting and cannot service this request"

Nonetheless Firefox seem to be functioning as I would expect apart from the irritating appearance of the dialogue box that I have described.

I attached a scan of the dialogue box - how do I prevent it appearing and/or is it signifying anything important,

Windows 11 Home Version 25H2

Hello, I’ve been increasingly frustrated over the past few weeks with your browser, which I prefer over all the others, because it keeps crashing constantly. I’ve tried several small fixes suggested by IT professionals, such as clearing the cache, running an antivirus scan, and deleting my browsing history, but the issue persists with no improvement. At this point, my last option seems to be uninstalling and reinstalling the application, but I’m concerned about losing my bookmarks. Could you please advise me on how to resolve this issue? M. BEDIRIAN

I have asked several times, and received no responses that helped. I am continuously hammered with GAH! I've tried everything I've found both from Mozilla, and Google AI, but have had no solutions. What am I missing? If I have to uninstall, then reinstall Firefox, I'm going back to one of the better versions, like 98, or 99, or earlier, which I've got on old HDD's that still function. Thanks to anybody who can offer a real solution.

Firefox is shutting down all my active tabs automatically WITHOUT asking me. This is regularly happening and wastes a lot of time. Is it due to installing Updates ? I DON"T want ANY updates and I am fully happy with my current version. If this doesn't go away, I will have to delete this browser and move elsewhere.

For the past few weeks I have been having constant crashes in the form of tabs crashing and complete browser crashes. I have tried disabling every single extension, still crash. it even crashes in troubleshoot mode. In fact its crashed while I am writing this. Seriously thinking about giving up entirely on this browser and switching.

the latest crash report submitted : bp-5ca96001-20a8-4097-ae0d-9a42d0260630 bp-aba4b1dc-6248-4516-bf35-3f19d0260630 bp-c222bd57-f884-49e6-a3a7-be7130260630

Firefox frequently and continuously force-closes the entire program on me, multiple times a day. I have tried updating my computer, checking for Firefox updates, and any extension updates that could be affecting this. HOW DO YOU MAKE THIS STOP?