Firefox Support Forum

Looking for help to try and work out what is happening. Over the last few days, after powering up and browsing the internet everything works fine for a while. Main websites are Facebook, YouTube and continually clicking on bookmarked items. Normally only a few tabs are open at any one time. Then after some time, I open a new tab and get the

Gah. Your Tab Just Crashed message appear on the new tab and can not access any websites after this. The Close Tab, Restore Tab, Restore All Tabs do nothing.

I have to reboot the PC and start again.

I'm using the latest version 126.0.1 (64-bit).

• Tried running in Safe Mode, uninstalled Firefox and re-installed it, reverted back to 126.0 (64-bit) and same issue.

• I've cleared the cache and history

• Had Add Blockers, FB Purity and New Tab Override Extensions. Disabled these and still no success.

• I have AVG driver update installed and its telling me all the drivers are up to date.

• The problem seemed to start happening after an AVG update, so I have removed AVG Antivirus

The computer is an ASUS Vivobook Laptop, Intel(R) Core(TM) i3-1005G1 CPU @ 1.20GHz 1.19 GHz with 8GB ram.

I have tried

EVERY [removed] DAY firefox looses my tabs, historys, extensions/addons, prefferences and settings.... EVERY [removed] DAY!!! why am i wasting hours each day trying to recover basic [removed] ur piece of shit web browser clearly cant retain. even [removed] BING would be better at this point. ive tried everything at this point even down to tab managers but again without the webrowser holding extension info this too is [removed] useless. whats more annoying is it has clearly been an issue for over 8 years with a 10sec google search.... SORT YOUR [removed] OUT!!!!!!! yes im on windows, yes im up to date, yes ive tried resetting ur web browser, yes i have a [removed] folder with "old firefox data" on my descktop i cant use, yes ur web browser is a piece of [removed], yes i will be uninstalling this [removed] shortly. sadly i still remember the day firefox was king...... o how the mighty have fallen..

I accidentally closed my Previous Tabs Session and am unable to find them. I've tried some of the online tips but am still unsuccessful. Is there somewhere on my computer where I can find the previous tabs that I had open in Firefox?

Thank you, Massimo

Hi, having an issue where new tabs crash while browsing.

Will be fine for 30 minutes or so but opening a new tab/clicking on a bookmark leads to Gah. Your tab just crashed.

Using a working tab is OK as long as I stay on the same site.

All drivers are updated.

Once it happens, I close my browser and I am then fine for a while.

Removed all themes/add-ons in case of conflict but still same issue so re-added.

Any advice appreciated.

I have just udated nightly. the tab hover shows a bunch of useless info. is there a way to get rid of it? apart from the image, that seems to be tweaked ibn settings for now, I don't need such a verbose mode. every usual surfer needs just and extended reading of the page title, that is usually cut when you have many tabs. I switched to FF because chrome conf made it unusable. hope FF isn't going into the same direction. Thanks for any help. andrea.

Firefox losing all of my session history is an inevitability. I have encountered this problem on many cases over the past decade, be it due to an update, a power failure, a BSOD, or just randomly (despite closing the application correctly); like a law of nature, eventually firefox will just forget to open a window, or the entire session. This issue has caused me to switch to other web browsers in the past, multiple times. They each struggle with this in their own way.

Sometimes I can save my session by finding it in the sessionstore-backups folder, but the problem I am talking about is that that does not always work! Often times the backups get overwritten when the problem occurs - even if I don't touch firefox or open it again or close it, even if I immediately notice that a window that was there when I previously opened firefox is no longer there, often times nothing in the backup files actually has the version that I want. It's always overwritten with the new/modified session that's missing hundreds or thousands or tabs from my session restore history.

I think that the ability to actually restore a session and not have to cross my fingers that it doesnt blow up and delete my entire history (which randomly occurs at least once every few months) is the biggest problem with firefox. It is the most frustrating thing that any web browser can do. And quite frankly even if I wanted to use Firefox Sync to store my session information on a remote server (which I do not!) I do not actually trust that firefox will actually not fumble it and randomly delete my session every few months, given the history of how this problem has existed as long as I have been using this software. At least with the local sessions, sometimes I can recover some of the data, which isn't an option when firefox sync inevitably drops my session history. I am on the verge of setting up some kind of recurring task to back up the session store files on a regular basis just so I don't go crazy.

So: why does this problem exist? Is there a long running thread about why the session restore system sucks? Will it ever get fixed (even having multiple backups or the ability to manually save a backup in the UI would be a major improvement)? Are there community supported tools to fix this problem by saving extra copies of the sessionstore files?

I was removing some extensions that no longer worked. Just 2 video extensions, then I changed my current theme and my monitor black screened for a moment. Afterwards, all of my tabs were on the top. I've tried to chang them in the about:config. Added code in several chrome folders specified, and it still won't go to the bottom. Can we just get a simple setting check mark box? This is incredibly frustrating.

In the last few days I am getting tabs crashing constantly (Gah. Your tab just crashed). This has never happended before. I have AVG antivirus and have downloaded the newest version of firefox. Is there anything else I can do to stop this happening.

So I have an issue where I am unable to reorder or detach tabs after having detached one tab. When I start Firefox I am able to reorder my tabs as much as I want, but once I detach one tab both functionalities do not work anymore.

- Firefox version 126.0 on Kubuntu 24.04 - After restarting Firefox I am able to do it again once - After rebooting I am also able to do it again once - The same issue in private window - I have refreshed Firefox through Help -> More troubleshooting information - Disabled all my add-ons - Tried it in Troubleshoot mode

I cannot seem to find a real answer online. Does somebody here have a solution for me :-)?

Hi,

If I have an unloaded tab on right of the current tab and I close the current one, instead of going to the right tab, which is the unloaded one, it jumps to another tab which I'm not sure has what relation to it, it certainly is not the tab that opened it.

I removed every modified entry of "Browser.tab" in About:Config, installed "Select After Closing Tab", no result.

Thanks

If you close a tab that is next to one or more unloaded tabs, firefox jumps those and opens the next one that is loaded. Is there a way to disable this so upon closing it would open the right tab, whether loaded or not. I tried "Select After Closing" add-on, didn't fix it. Disabled Auto Unloading via about:config, same result.

Since the new update, when I select an autofill a new tab opens for the settings. I have closed it many times, double checked the settings and closed it, etc. but it still opens a new one every time I use the autofill feature... please advise.

I just tried the free Avast anti-track product. I ran a browser clean-up which included browser cache but NOT browser history. (they give you options on what to clear). Now I have lost the 50+ tabs I always open on startup. I have also lost all browser history older than 2 weeks. Avast can't help. Anyone know how I can recover my tabs?