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I can receive, but not send, emails using Thunderbird on my PC. I believe this problem began when Thunderbird was updated on 1/13/26. I have no problems sending email on my tablet.

My service provide does not support TLS 1.2, so I tried changing security.tls.version.min to 1. This did not help.

The attached shows the error message and my SMTP settings (1st image) and my service provider's email server settings. I tried changing the SMTP port to 587, but this resulted in a time out error.

Any help is appreciated, Norm

Hi,

When I type map into address bar, maps.app.goo.gl becomes the autofill. I'd want to delete it. However, shift-delete does not take effect. I checked history and did not find it.

How can I delete it?

Thanks

1. I've drafted an email, then hit save / closed the email and opted to "save changes". 2. I try to edit that email, but it is just "flashing" in the preview screen. I right click on it to "edit draft message", but that just brings up a blank email. 3. The status in the bottom left of the screen shows "loading message..." "downloading message", repeatedly. 4. It was working fine earlier in the week, but Thunderbird Desktop Version 140.7.0esr | Released January 13, 2026, seems to be when the problem started?

I have just changed to a new pc. Thunderbird was working fine until Saturday when it stopped sending emails. I have discovered that the username on the outgoing server is missing but there is no method of adding it and I have spent all day trying to find a way, including twice reinstalling Thunderbird which has brought back the same issue each time. Any advice on the web seems to be for older versions.

I've (finally!) managed to set up a new account on my new PC (having found the required password, a long string of letters - where did that come from? - I would certainly never have chosen that and I was never informed of it). I also successfully managed to transfer my Profile from the old PC to the new one (thanks to your helpful article. However, While I have thousands of 'sent' messages I only have a few in my inbox and sub-folders (i.e. today's). (I originally used the recommended server settings (?IMAP) I was offered but then changed to SMTP/POP which is what I always used before without problems.) So - I go to 'Import from a Thunderbird profile' and it shows me the Profile Name and Directory details, but then says 'Nothing can be imported from the selected source' - but doesn't tell me why not, nor what I should do about it! Given the Profile has transferred successfully, why can't it be accessed? Any ideas appreciated. Thanks, David Collins.

My thunderbird email repeatedly keeps crashing after being open for about 5 minutes or so. Time after time for the past 4-5 days. I have sent reports each and every time but the problem persists .can you please help me I will have no choice but to cancel my account and donation. Thank youbold text

I use Firefox browser on Treasury Direct website to calculate, update, and save the US paper bond values. It was working in October until converting to Windows 11. I am using Firefox version 147.0.1 It has not worked since then. Treasury Direct states that Firefox browser should be used to perform this function. Why isn't it working.

Thunderbird has suddenly started autocorrecting a particular word in my emails. I type the word "Ronnie" a lot and for no apparent reason, a window with "Rog" and an X comes up and it autocorrects to "Rognie" - see attached screenshots.

I've looked online and someone suggested it could be something to do with my address book but it happens when I am composing the email itself.

My name is Roger and I sometimes sign off emails "Rog" but this autocorrection has only just started happening and I can get rid of it.

AnMoS Tahoe 26.2y ideas, anyone?

The File (saving to a folder) Recent function used to have the folders alphabetically. Some genius thought to reorganize the Recent folders to be in chronological order. Is there a setting to have the Recent folders be in alphabetical order again? I could not find anything. Thanks in advance.

Just installed TB 147 under Windows.

Previously, there was a menu item File/Compact Folders (plural).

It is now (at least on my machine) replaced with File/Compact Folder (singular), which only compacts the currently active folder. I cannot now find a way to compact all folders at once.

What am I missing?

I have Thunderbird on my Omen 35L on Win 11. Thunderbird CANNOT CONNECT to Comcast to send an email. This was not a problem on Win10. I have done ALL the settings fixes and NOTHING WORKS. Other mail provider accounts send OK (e.g. Site Ground). This is unique to Win 11 and Comcast.

Hello, I have installed the latest Firefox on my Windows 11 desktop PC. I have created a shortcut to Firefox in the start menue Since a few week, I observed that I had to invoce Firefox twice in order to get is running once. The same happens if I double-click on firefox.exe in the intallation folder (C:\Program Files\Mozilla Firefox): After the first double-click, the windows activity circle appears for a few seconds and then dissapears again (without staring Firefox). After the second double-click, Firefox starts immediately.

I can repeat this several times.

• first double click > nothing happens
• second double click > Firefox starts
• closing Firefox
• third double click > nothing happens
• fourth double click > Firefox starts
• closing Firefox
• fifth/seventh/... double click > nothing happens
• sixth/eigth/.. double click > Firefox starts

I have no idea what might have gone wrong. Any suggestion from the community is appreciated. Best,

After installing update 147.0, when watching videos on YouTube or twitch, artifacts appear on the monitor and an error message appears stating that your driver has been restored to its default value. In version Firefox 146.0. There were no such problems, and in general there were no such problems. But my graphics card is not a new AMD Radeon R7 250X 1gb. Version 147.0 states that "Improved video playback performance on systems with AMD GPUs by enabling zero-copy playback for hardware-decoded video where supported, bringing them to parity with Intel and NVIDIA GPUs." I think the reason here is the incompatibility of either drivers or with encoding support on old video cards, I hope that the developers will fix this problem for me.

The welcome addition of Tab Groups I just noticed on updating my Firefox, however looking through help and documentation, it's not clear to me if Tab Groups syncrhonise across devices (or at least desktop devices) as like recently added to Chrome. Wished to check if this is case

I am using Firefox 146.0 (64 bit), canonical-002 - 1.0 on Kubuntu 24.04.

The browser will not store credit card information. If I enter correct information into a Web site, Firefox correctly queries whether I want to save this information. Clicking "Save" closes the dialog but when I look at "Manage payment methods" in Settings nothing is saved. Attempts to enter the information at this point fail as well. Note that the check box "Save and autofill payment info" is set.

Hi, The question is in the title. I have imported my Outlook data in this 32-bits version (updated to 140.7) . I would like to keep them in a 64-bits version (147). I didn't find the solution. Thank you for helping me. Michael.