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This has happened randomly on several different computers, both windows and ubuntu linux. It just now happened on my Win 11 computer. Was viewing the CNN news site and FF suddenly closed, without a "FF crashed..." message.When I clicked the icon to reopen it, it came up with the home page group of tabs instead of reopening the windows and tabs that were opened when it crashed. Worse, none of the previous months of history shows up and recently closed tabs and windows are both greyed out.

Is there a way of recovering the history of what I was working on at the time of the crash and what the hell is causing this? I am close to dumping FF and going with something else as this is highly annoying.

Après avoir téléchargé la toute dernière version, 18.5.00, firefox ne fonctionne plus. Le message apparait à chaque recherche d'un site : l'onglet a planté. Que faire ? Merci

Greetings, I've been using Thundrbird for many years, and now suddenly it won't open, because of a "Bad Image" error. Is Mozilla Thunderbird still usable on Windows 10? This started happening either yesterday (maybe yesternight) or the day before yesterday.

"--------------------------- thunderbird.exe - Bad Image

C:\Program Files\Mozilla Thunderbird\lgpllibs.dll is either not designed to run on Windows or it contains an error. Try installing the program again using the original installation media or contact your system administrator or the software vendor for support. Error status 0xc000012f.

OK

Thunderbird

Couldn't load XPCOM.

OK

"

Should I try to reinstall the newest version 150.0.2? I have downloaded it, although I just checked the file version, and it's already updated.

Thank you, Shalom

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

No matter what I try to read or go to, Firefox crashes repeatedly. I literally cannot use it at all. I keep getting: Gah. Your tab just crashed. We can help! Choose Restore This Tab or Restore All Crashed Tabs to reload the page/pages.

Clicking those options fixes nothing! How do I go back to the previous version, please?

Other than being slow to download my emails now for a few months, TB was performing well until a week or so ago. Now it also won't open the downloaded email when I click on it and the TB freezes up so I can't close it out. I have tried restarting computer multiple times and it works for one or two emails that I can open and then starts freezing up again. Makes using it almost impossible. I have security Windows 11 Defender only and have had it the entire time when it also worked well.

Bruce Caress

May 7, 2026, 15:17 CST

Hello, I've been watching MSNOW at 4pm eastern and after about half an hour it crashes. I get a message to send a report and restore the tab. I restore the tab which works for maybe ten minutes and crashes again. I am using Windows 11 on a new computer. I'd appreciate some assistance. Thanks. Bruce Caress

Moderator note: This question has been edited to precise Firefox and OS version, based on the crash reports.

När jag ska starta E-postprogrammet går det inte. Jag får först meddelande om felstatus Oxc000012f. Sedan får jag kan inte ladda XPCOM. Vad betyder det? Måste jag ladda om programmet. Jag har använt programmet i många år och har mycket infor och kontakter där. HJÄLP

I use Linux Mint and I have been experiencing numerous system crashes involving Firefox which requires a cold boot. What is the problem? How can I debug this? Are you getting crash reports?’

This happens several times a week. It has happened continuously tonight since installing the latest update via the Software Manager.

The program causes a total freeze of the OS. All other running programs and all input sources. I have no choice but to shut down via the power button on the tower.

Mint generates crash reports but I have no way to determine if they are being sent to Mozilla.

Firefox for Linux does not provide a troubleshooting system like it does on Windows. Neither does Mint.

I studied Computer Science in the 80s when Firefox was known as Navigator. I learned C and the Unix OS, but since then I became a psychologist, and don't remember too much of the Com Sci stuff I learned and I don't think Mint allows user modifications anyway.

What can be done to fix this? I don't have the Benjamins to buy a new Windows to replace the Linux, nor do I want to.

I have followed all the other recommendations with, no luck. I am on Windows 11 and use Eset virus software. Thunderbird is not listed as running it Task Manager, and there is no Profile.lock (think that was what it was called) in the profile directory, and I have deleted the existing profiles and recreated it. I have uninstalled and reinstall Thunderbird, and I have rebooted my computer. I am frustrated and concerned I will loose saved emails and my address book! Help.

After updating to 150 (any subversion), FF crashes on almost start - I can load a page but loading another page or a video in the page will stop loading after a while and crash within 5-10sec. No about:crashes generated. No crash if I only browse the page that's opened (except if I load extra content like videos). FF remembers if I navigate to another page before the crash, it'll open the navigated-to tab (provided it has been long enough, small pages load, big pages don't). It really looks like after loading a fixed amount of data it just stops loading and crashes, taking the full browser down with it. Note that there is likely 500+ tabs opened (even though it's never been a problem), cache was cleared and extensions deactivated.

For the first time in many many years, the beta's unstable (brillant track record for a beta)!

why im cant set www.http//firefox for home page.??why we have to re store evetime when we washing a movie,,,then they automatic to ture off ?are they have any shearch with out of the google ?

As the subject says, Thunderbird 18.0 for Android keeps crashing silently. There doesn't appear to be any specific trigger; periodically, the app just disappears off screen. Since it doesn't seem to be related to a specific user action, I wonder whether a background process (such as server syncing) might be causing it. My device is a Samsung Tab A-9.

On a samsung a54 running android 16 and thunderbird 18.0, thunderbird crashes on trying to open a specific email from theglobesailer.com. it does contain quite a lot of images? Interestingly, it opens ok on my tablet running 17.0. I can't see anywhere obvious to submit a bug report, so maybe someone on here could pass it on, please?