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Noticed 3 entries for various versions of Firefox in the Windows Settings > Apps > Installed apps. There is one Firefox record in the Start menu. 1. I have unistalled all the entries through the Windows Settings, deleted all folders for Moxilla and Firefox, cleaned the registry of every mention of Mozilla or Firefox. 2. Installed newly downloaded Firefox 137.0 three days ago. 3. After today update to v. 137.0.1 - I again have 2 entries in the Settings > Apps > Installed apps: v. 137.0 and v. 137.0.1. The same problem was with Thunderbird. I also cleaned all the folders and the Registry, then fresh installed it again. Thunderbird was not updated, so I don't know if the problem has returned. Maybe something is wrong with the Mozilla installer? What should I do to have just one Mozilla Firefox entry in the Windows Settings > Apps > Installed apps after update as it was years before? (My system is: Windows 11 Pro 24H2 English US, Firefox 64-bit English US)

This happened after a Win10 update and caused a PC to auto reboot overnight. User came in and tried to start Thunderbird and there was nothing there. Here is a screenshot of what it looks like when Thunderbird opens:

https://i.imgur.com/CX9QOma.png

What's weird is, if you go to the address book tab, the email addys are there and if you search for a contact or a keyword in the search bar, it shows the messages. But there's no accounts showing at all. I did some search on Google and I haven't found anything that helps so far. The closest I came to what I was hoping was going to be a solutions was this:

https://support.mozilla.org/en-US/questions/1402124

But it doesn't appear that the JS file is corrupt because there are none of the 2 other JS files mentioned in that solution that shows the pref.js file to be corrupted. But if I open that JS file, I get this error:

https://i.imgur.com/JAv908Y.png

So I'm not sure if it's corrupted or not? I'm at a loss as to what to try next. I've tried re-importing that profile and I get an error when I try that, so I'm not really sure what direction to go next. Any help would be greatly appreciated.

This is the most current version of Thunderbird (128.9.1esr)

When I scroll some sites with the touchpad, it doesn’t scroll smooth like on windows. It scroll brutally 3 lines after 3 lines. I can’t scroll a half line for example. Even if I activate “smooth scrolling”, it doesn’t scroll with the precision and the speed of the hand. I don’t if It’s a mistake in the code of gecko or in the code of firefox but could somebody fix it?

Whenever I select a message, Thunderbird automatically opens the message in a new tab. It hasn't always done this, and I don't want it to. It just started doing it one day and won't stop.

This is particularly painful when I select 10 messages to delete and instead I get 10 open windows! Please help me stop the madness.

I posted a similar question earlier, and although I never got any useful advice, the problem of random emails disappearing from my PC seems to have resolved itself after a week or so. However the problem has now turned up again, but this time on my husband's PC (both PCs are running Windows 10 and latest version of Thunderbird). None of the three accounts on his PC is receiving emails, although Thunderbird correctly enters the number of 'unread' emails and updates it when more arrive. The emails do arrive on my own PC and on my Apple devices (all of these also receive email for all three Thunderbird accounts), but they do not arrive on his desktop PC: the only way he can read his email at present is for me to forward it from the inbox on one of my devices to his Gmail account. If I do this, Tbird seems to recognize that the email has been opened and read, and on his PC the number of unread messages is updated (it might be worth noting that the number appears in grey, not blue as usual). He is able to send new emails from Tbird, although of course he is unable to reply to the messages that are not displayed there. It is particularly annoying because most of the missing mail is either business related or updates on medical appointments, etc.

I really cannot understand this problem, and am probably not explaining it very well. Thunderbird on his PC seems to recognize that new emails are coming in to all three accounts, because the number of unread messages updates, but the messages themselves are not being displayed (I've looked for them in junk, deleted, etc., but no luck). There are no filters set up to redirect things (except a few to send scams to junk). And all the emails are coming in fine to all three accounts on my PC, as well as my Apple devices & our server's webmail function.

If anyone can help, we would be very grateful. We are long-time Thunderbird users, and would hate to have to give it up and learn something new. Many thanks.

With the pervasive cookie tracking nowadays, I would like to consent to all cookie requests that continually pop up asking for more information but now I must adjust accordingly and use Private Tabs more info so I need a feature that can let me use Private and Normal tabs in the same window, at Firefox.

Is Firefox still supported fully in windows 8.1. At present my experience stops me form sensibly browsing using Firefox as multiple sessions that should have been closed are still held open and Firefox just cant process browsing requests? This make Firefox unusable for multiple web searches under windows 8.1 ??

I posted a similar question earlier, and although I never got any useful advice, the problem of random emails disappearing from my PC seems to have resolved itself after a week or so. However the problem has now turned up again, but this time on my husband's PC (both PCs are running Windows 10 and latest version of Thunderbird). None of the three accounts on his PC is receiving emails, although Thunderbird correctly enters the number of 'unread' emails and updates it when more arrive. The emails do arrive on my own PC and on my Apple devices (all of these also receive email for all three Thunderbird accounts), but they do not arrive on his desktop PC: the only way he can read his email at present is for me to forward it from the inbox on one of my devices to his Gmail account. If I do this, Tbird seems to recognize that the email has been opened and read, and on his PC the number of unread messages is updated (it might be worth noting that the number appears in grey, not blue as usual). He is able to send new emails from Tbird, although of course he is unable to reply to the messages that are not displayed there. It is particularly annoying because most of the missing mail is either business related or updates on medical appointments, etc.

I really cannot understand this problem, and am probably not explaining it very well. Thunderbird on his PC seems to recognize that new emails are coming in to all three accounts, because the number of unread messages updates, but the messages themselves are not being displayed (I've looked for them in junk, deleted, etc., but no luck). There are no filters set up to redirect things (except a few to send scams to junk). And all the emails are coming in fine to all three accounts on my PC, as well as my Apple devices & our server's webmail function.

If anyone can help, we would be very grateful. We are long-time Thunderbird users, and would hate to have to give it up and learn something new. Many thanks.

Hi. New issue today. Running FF V 137.0.1. that was updated on 4-8-25. Unable to login to Credit Union online banking. Cleared browser. Nope. Restarted FF. Nope. Restarted computer. Nope. Called Credit Union: They saw no issues with account, suggested trying MS Edge browser. Boo. Hiss. Tried Samsung Android Smart Phone running FF V 136.0. Works fine. Rolled back to a previous restore point that had FF V 137.0 running. Scary stuff. Same login problem. Fired up MS Edge. Works fine logging in to CU account. I see this issue comes up occasionally. Is there a fix in the works? Will it go away AIBM? Thanks for being there. greg

I can't get Youtube shorts to load in iOS Focus unless I request the desktop site on my phone. I've also noticed that regular iOS Firefox has become very slow at loading Youtube videos, even with a strong wifi signal. This is recent behavior. Anybody know what's going on? Solutions?

Last night, I made some Draft messages, arranged some messages in the Sent folder, and shut down. This morning when I booted up my MBP running MacOS 15.3, and launched T'bird 136, the Sent, Drafts, and Templates folders were not visible at all in T'bird, only the Inbox, Junk, and Trash.

Then I checked the Apple IMAP server using Mail on my iPad, and found those folders there. I use T'bird as my main mail client because I rely on Local Folders, and only superficially use Mail. The Drafts, Templates, and Sent folders of the Local Folders are visible.

I have only one Account, and am not using Unified Folders. This is really scary, as I absolutely rely on T'bird for most of my work.

Every time Thunderbird is launched, a new tab opens with a donation offer. This kind of persistence discourages not only donations, but also the use of Thunderbird. How can I disable this?