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Is there a way I can go back to the previous version? This latest update has really slowed my computer in loading everything. It is very frustrating. This is not the first time an update has broken things.

I've been on Thunderbird for almost 20 years and a Mozilla fan. Have evolved a fairly elaborate configuration of local (POP) email folders, rules, calendar, and accounts to manage & organize email activity, retention, archiving, etc. I've not had to deal with Profiles in previous upgrades and don't have much experience with it.

The recent Oct 1 push of Firefox & Thunderbird 131.0 releases took me by surprise. I was able to re-implement the previous Firefox profile to recover bookmarks, cookies, passwords, etc. However, when T-Bird warned that 131.0 was Beta & unsupported I took the suggestion to download & install the current supported release: 128.3.0 (I was on 128.2.3). Then hell came.

Once downloaded, installed & launched, Thunderbird 128.3 cautioned the new profile created with T-Bird 131.0 was incompatible with previous versions and that I should create a new one, which I did. Still could not get new T-Bird to recognize previous profile, so I tried uninstalling, downloading & reinstalling 128.3 multiple times, each time prompted to create a new profile before proceeding. I tried to follow the previous profile restoration process detailed on support forums & articles, but none seemed specifically relevant to my situation.

I located my profiles in the appdata roaming profile folder, including what I think are most recent based on size of mail folders. Can't determine whether I had just one or several in use due to the extent of my setup. Could really use some help & advice to: 1) Determine which profile was in most recent use prior to T-Bird upgrade. 2) Whether more than one profile was in use. 3) Re-implement the profile I was using on T-Bird 128.2.3 with my new 128.3.0

Regards & many thanks in advance, John C Houston

PS You'll ask why I would upgrade to 131.0 from 128.2.3. Answer: it was on auto-update and 131.0 is what was pushed. No more auto-updates for this guy!

Today I was notified Firefox version 131.0 had been installed. Now, when using the Charles Schwab website, I can't access my bank account, which is a separate entity, and requires me to use Schwab's access method. I've used this method/tool for a decade or more without incident until FF 131.0 showed up. Here's the error: "You might have cookies blocked or cross-site tracking prevented. Depending on what browser you're using, check your settings for these terms: • Block third party cookies • Cookie tracking • Cross-site tracking Make sure cookies are not blocked and cross-site tracking is enabled. Follow any additional instructions in your browser once you have adjusted these settings."

I've disabled "Enhanced Tracking Protection", cleared the browser of cookies and site data. I disabled Privacy Badger and Ghostery. None of which helps.

This procedure works using Firefox on an ios tablet. Also, it works with Microsoft Edge.

Thanks for any help. -Deke

Hey there! System: Windows 10 x64, Firefox Nightly.

Problem: Out of the blue, when I start Firefox Nightly (I think 2-3 days ago), it just crashed with no extra info. I see the "window of the update process", it goes to the middle or to the end, immediately closes and doesn't bring up the Crash reporter. However! When I tried to run a Nightly Installer that I downloaded through Chrome, it quietly runs and then just opens up my browser no problem, profile and all. I checked and it seems to be the exact same .exe file (according to the Task Manager).

So in short: it breaks if I run it straight from my usual shortcut, or with .exe. But if I run the installer myself, the browser opens up fine.

However, the installer didn't bring any new updates that would fix the problem, I have this for 2-3 days now, I don't remember. I start working, I see I didn't fix it and run the installer again.

Any ideas on the fix? I would love to not lose my profile, settings and, if possible, tabs. I'll try disabling all the extensions after I post this, I don't think they contribute, though (seeing how the external Firefox Nightly Installer opens up my browser just fine).

Thanks in advance!

This is another moment where I have to post through my Mac Monterey when the problem is on Window 10 64-Bit. This problem surfaces when there is an update available to either program, though it seems like most times, not every time. Currently there is one available for Firefox that does not download. Previously the download installed on its own when this happened. I have shut down and restarted the system at least three times. At the last time I restarted in Safe Mode With Networking. It detected the update but would neither download nor check for updates. The message read to reinstall the new version. Is there any way to fix this updating problem once and for all? It is peculiar the Edge does not display this behavior. Right now what tabs I had open froze; so I had to use this system to post with Firefox for Mac Monterey. Thanks in advance.

You can fix the software problem without requiring a system restore to do so. It only is happening with Firefox, not other browsers. The website display in some coding format, which I don't know how to use.

I have my settings set to automatically update Firefox. Earlier this week, Firefox 131.0 was installed through this automatic update. Since then, Firefox repeatedly and randomly crashes, and I have no idea why because it did not happen with previous Firefox versions. There seems to be a bug in the new release that is causing this.

A couple of days ago Mozilla updated the home page. Even though I examined the spiel I now get MY Home page and a Mozilla page when I open up the computer. How do i get rid of the Mozilla page?

I am getting the following error message: Platform version 131.0.1 not compatible with miniversion. Please see the screenshot attached for further details. I cannot open firefox due to this error message and I receive this error message every time I try to open the Firefox.