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I always had one version of Firefox installed. I regularly update the software via Help >> About Still, after every update, I am getting multiple versions of Firefox listed at [Settings/Installed Apps] and [Control Panel/Uninstall or remove apps] on my Win11 23H2 22631.3593 (screenshot attached).

In order to get rid of outdated items from the list, I need to reinstall Firefox completely, but the same thing is happening with every update of Firefox.

Is there a way to resolve this and why is this happening?

I restarted my Windows 11 laptop and got error message about user profile. Restarted again and looks like it was corrupted so deleted my my user profile and Firefox config and bookmarks are gone!

Still have all the files just a new user profile and the old one is gone?

Any help how to get Firefox bookmarks back would be much appreciated

I installed Thunderbird a few weeks ago and I'm now trying to migrate from Windows Live Mail 2012 (WLM) to Thunderbird (TB). I am connected to a server called Copper..net via IMAP. (I've set up 2 other email accounts under TB, one of which I will almost certainly abandon and the other, I hope, will become my default server. But right now, I'm not really using either).

Most of my emails -- I have over 300,000 -- are stored in local folders. When mail comes into my Inbox, I generally either delete it, mark it as junk, or once read, store it in a local file.

Until yesterday, all of my IMAP folders showed up under the Copper.net account. They also showed up when I went to File subscribe and refreshed the list (other than one episode which I was able to resolve). Now, they don't show up in either place. They still do show up normally in the other accounts.

Since installing Thunderbird, I have managed to transfer most of my local emails from WLM to TB, so I am now down to 3 of my largest folders, containing between 60,000 and 65,000 emails each. Two days ago, I was able to transfer one of them, albeit with considerable difficulties along the way.

My method was to set up a new IMAP folder called Transfers. I COPY emails from the WLM folder to it (in chunks for larger folders). Then MOVE the emails from the TB Transfers folder to the TB local folder.

When everything is working properly, that move eventually results in the TB transfer folder being empty, which then results in the WLM transfer folder being empty. And then I can restart the process.

If for some reason, the move does NOT empty the transfer folder, I do so manually by deleting all the emails and then emptying the trash. I then check properties to make sure that the folder is really empty, and if it isn't, use the tools under properties in WLM to manually delete them

Yesterday, when I tried to do all this again for my 2nd large folder, I found that the transfer box in TB a) often didn't contain all the emails it should have and b) that the ones that showed up as being there wouldn't move at all. I tried compacting, repairing, getting messages, all to force syncing , but nothing worked.

And this morning, things went from bad to worse because now my IMAP folders no longer show up at all (except Inbox and Trash). During this whole time, the inbox has been syncing properly and mostly, promptly.

Finally, I should add that I did download and add the import/export NG tool and while it worked pretty successfully for small folders, if did not work well for larger ones. I'm still in dialogue with the developer.

Any help would be much appreciated; I'm incredibly frustrated.

P.S. I tried this morning to repair TB, just in case, but using Control Panel, the only option was to uninstall it, which I did not want to do. I do wonder whether TB has somehow gotten corrupted.

I also tried opening in safe mode, which didn't help. I shut my computer off at night, so it's restarted at least once a day. Yesterday and today, I also restarted during the day in hopes that it might help. No dice.

I cannot download any files or any adons through firefox. I have tried every single troubleshooting method in the "What to do if you can't download or save files" article I have restarted my computer, I have refreshed firefox, I have reinstalled firefox TWICE, I have turned off my firewall and tried downloading a file, I have changed the wifi im connected to, I can download files on internet explorer just fine, I have tried a new profile, I have scanned my device for viruses (theres none), I have no idea what the troubleshooting mode is supposed to do because I cannot download files in that either. I currently have no ad-ons installed because of the refresh I dont know what else to do and why is my firefox doing this, it started yesterday.

I usually download and install manually the custom install of Firefox on Windows.

Recently, a new version was automatically installed without my permission and destroyed all my customization. THIS IS UNACCEPTABLE. I had to restore the older version from backup and I was going to stop updating.

But I see that the manual custom installation is still available for download.

I want to make sure that if I use it it will not wipe out my customization again.

Please confirm.

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I was running MacOS Catalina 10.5.6 and upgraded to Sonoma 14.5. I know it was stupid to wait so long, but that's where I am.

After many years of using Thunderbird, I stopped using Thunderbird for my email years ago because my old provider gave up the ghost, and I switched to gmail even though I loved Thunderbird. I still had many documents in Thunderbird which I didn't transfer to other applications or locations.

Today, I finally gave up and did a massive update on my MacOS. Now Thunderbird won't run, and I desperately need many of the documents that I could only access through Thunderbird. When I went to the site for updating Thunderbird, the first thing I needed to know was what version I had, and the instructions assume you can access that info as you are running Thunderbird, which I can't do now. Please help!

Thank you, Sara

On Mac OS 14.4 Firefox hangs on launch and crashes, requiring "Force Quit" when I try to Refresh or Troubleshoot. Uninstalled and reinstalled multiple times, and restarted computer several times. Have spent several hours trying multiple community suggestions to now avail.

I am not a programmer, but am able to follow instructions. I clearly need someone to hold my hand and walk me through the solution. (I even checked out the Kaspersky suggestion, but cannot install it because Firefox cannot connect to the Internet.)

I have downloaded and saved "Raw Data.docx" and "Application Basics tex.docx" from one of the crash reports.

P.S. On this question form Firefox guessed that my operation system was Mac OS x 10_15_7, but it is 14.4

Julian

Got a new computer. Loaded Thunderbird and set up. Received a few emails. Then realized need to move Profile from old computer. Forwarded the few emails I got to another rarely used email account. Thought uninstalled (?) Thunderbird from new computer. Transferred Profile and ini to new computer. Thunderbird started on its own (?) but with about a month older version of my local files, and older emails. Mozilla Thunderbird did not appear in Windows start directory. Loaded Thunderbird again on new computer, and got back in the Windows start directory. Eventually got all my old emails were sent to me automatically in the (correct) Inbox, and I retrieved the few emails I forwarded to my other rarely used email account. Long story short, I got everything straightened out, but with one big exception. A second Inbox, the one that now receives my email, is now in my Drafts folder. How do I get my correct Inbox to receive my mail instead of the second Inbox in the Drafts folder? Thank you in advance to whomever has the expertise to straighten this out.

I was advised to use the Authenticator.cc extension for my Firefox browser on Windows 10 PC, I can't get it to run. It downloads but will not then do anything. I can't get the icon into the menu bar, I can't scan a QR code, it just will not perform. Why not?

I uninstalled then reinstalled Firefox. I was able to recover my bookmarks, add-ons, and login information. But I do not know how to recover by pdf files. Are they gone for good?

Hello, my Cox email account was migrated to Yahoo mail. I can receive emails but now I can't send emails from Thunderbird. I've triple checked server settings. Please help. Thanks-Vince

This is the message I get and it does this with all email addresses.

Sending of the message failed. An error occurred while sending mail. The mail server responded: Request failed; Mailbox unavailable. Please verify that your email address is correct in your account settings and try again.

I am running 115.11.0 on Ubuntu 22.04

I changed email SMTP servers, incoming and outgoing. First I migrated IMAP on the cloud between old host and new host. I connected Thunderbird using existing a profile, just changed server information. After that email started coming into Thunderbird. I discovered a bunch of the filters had been disabled with no destination folder. Not all of them. Just maybe half. It knew the destination folder for the filter because it was at top of window when I would look at filter rule. I had to use that as guide as to what destination folder it should go to, and it filters fine.

Why were all these filters cleared of destination folder?

I'm having problems with the Cardbook add-on but it is up to date based on my version of TB. When I go into Preferences->Advanced-> Update 'Check for Updates' shows I'm up to date. However, when I check archived versions it looks like the last version that worked with a MAC release of less than 10.12 is 78.14.0.

I'm confused if I can upgrade to 78.14 and how I would do it?

Thanks for any advice

P.S. and yes, it's a very old Macbook from 2009.

Hi guys.

Need some help. I can't download any files using Firefox. It always says, "Failed".

I tried other browsers, and I'm able to download just fine.

I already tried this guide, https://support.mozilla.org/en-US/kb/cant-download-or-save-files, but still same.

I haven't tried to re-install Firefox because I have a bunch of workbook marks that might get lost. So, I want the re-install option as a last resort.

Thanks~

No idea what the cause is but I cannot download ANYTHING on my browser for some reason. Pictures, documents, executables, browser extensions. Tried downloading documents from email attachment.. fail Tried downloading VLC... fail Tried every default recommended solution, clean install, you name it. Mind you all of these files downloaded just fine perfectly via Microsoft Edge.

Noticed another abnormality. Changed the download folder to a custom one. Download failed and DELETED the folder for some reason.

While following this step in order to reduce CPU and memory consumption of firefox [content-prefs.sqlite file], I accidently deleted the Profile folder itself.

After this firefox wasn't opening and was stuck on not responding in activity monitor.

I reinstalled firefox, multiple times even after a shutdown, removing any old files in the Library folder. Still it's stuck on the same issue, firefox doesn't opens up even once.

I am in the process of migrating to a new Windows 11 PC. I am a long-time user of Firefox and have version 126.0 - 64 bit on my old PC. On my new PC I apparently downloaded it from the Microsoft Store during all my software installs. That version shows as "Windows MSIX Package Mozilla – MSIX – 1.0”

Are there differences between the 2 versions and should I do anything such as reinstalling from Mozilla?

Thanks, BillT

Hello! I have tried to install the normal Thunderbird on my PC for months now. Everytime all it does is count more and more files, folders etc. I can't get it to install. The two screenshots were made within a few minutes. I let it install for around an hour one time and it simply counted more and more files without ever moving in progress. I really don't know what to do. Restarts, redownloads, nothing works. Maybe someone knows what's wrong. Thanks!