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Every so often a message pops up that a folder can't be compacted because it's in use.

I don't understand why TB bothers users with this message. Compacting folders is supposed to be invisible to the user. It'll get compacted eventually, so no user action is required.

If I'm missing something, please educate me.

And if not, what's the best chance of getting it removed? Should I submit a bug report and argue that it's a bug in the design? Is a suggestion likely to do anything?

16 Nov. Yesterday I finally found a competent computer consultant who was able to solve the enormous problem of getting Google and my Thunderbird linked, so that I could once again use Thunderbird.

I have noticed that the layout is different when I am reading incoming messages in Thunderbird. I used to have the list of all my contacts showing vertically to the left of the open message , in alphabetical order. That is no longer there. I need help in restoring that. Thank you.

I am getting regularly getting a random notification sound even when no E-mails have been received.

It seems to be when Thunderbird is automatically checking for E-mails, so for example if i have it set to check for new e-mails every 5 Mins I will get a notification sound every 5 mins or whatever I set that time to.

How do I turn off this sound without affecting the notification when a new e-mail is received.

15 Nov. 2025 I contacted a very savvy computer consultant in my area, and he was able to connect my Thunderbird to my Google account, so I can finally use my Thunderbird software again. I have a question about the appearance of a message when I open the message. In the past, I always had the list of my contacts on the left side of my screen, aligned vertically, when I had an open message on my screen. That is missing now. I would like to restore that feature, and I cannot find a way to do that. Thank you.

So many emails require me to scroll to the right to finish reading one line, back to the left for the next, etc. They hurt my head, they take fireever to read, and they hurt my right arm too. Thunderbird used to have an option to wrap messages, but it looks like it was deleted.

I tried adding the following tom my user css:

1. messagepane {

   margin-left: 45pt !important;
   max-width: 900px !important;
   margin-right: 45pt !important;

}

The margin-left works. It gives a spacer between the message pane and the folder list.

The max-width and margin-right don't work. The messages still require horizontal scrolling, and the scrollbar shifts left, right up against the text, so it doesn't give the needed spacer.

I use the spacers to avoid the parallax-induced migraines.

Is there a button I push or a feature I enable to make sure that I'm opted-out of any future updates that include AI 'features'? Or should I switch to Vivaldi now and save time?

I know nothing about the dev options for Internet settings and minor turned on and it says the remote server is set to production. No flipping idea what this is. Can somebody please help me?

How do I get back the choice to get a message brought in manually and other features that were above my account name. I unchecked a box (it was called something board) and it was gone but cant find it to restore the option. I right clicked on that to get a drop down menu with a few choices. I cant remember exactly what they said. One of the icons was for manually bringing in my mail, like a refresh option as well as some other choices beside it. This was visible above my account name which is just above the inbox. Anyone have any idea where I find that again to restore it? One click and it was gone! :-( Hope I explained it good. Thank you

Dopo aver risolto una questione di mail, ora quando" rispondo "ad una mail, non compare più l'cona di allego e quella di invio. Posso sapere dove trovarle e installarle?. Grazie

I search but did not find any list of environment variables supported by Firefox. Is there such an official list, perhaps groupped by Firefox version, published somewhere?

I have just installed Thunderbird for the first and set it up with 2 email accounts. So far so good, but I am puzzled why I have the following situation:

Under Unified Folders, as well as the expected folders Inbox, Sent, Draft, etc., I have Account 1 Folder, Account 2 Folder, and Local Folders.

Separated by a line and underneath these I have All Folders, beneath which I again have Account 1, Account 2, and Local Folders.

Is it possible to get rid of this unnecessary duplication?

Yesterday I was able, with someone's help, to turn off the feature in Thunderbird that is a pop-up on lower left of screen that a new email has come in. But now I want to also get rid of the sound. Didn't have this problem with my old computer and Windows 10. Or is this something I can only not have when speakers are turned off?

When writing a message the cursor is a long black bar, how do I get it to normal size?

Cursor bar is about the length of the word "message" above. I can not take a screenshot of it.

I've just installed Thunderbird and given them a donation, but the big, fat 'sign' asking for a donation is still there and blocking half the screen. I have closed and reopened the program but it's still there.

I'm trying to access Microsoft login page using Firefox as my default browser on iOS. This isn't possible until I enable JavaScript but where do I do this?

I've tried about:config however the search engine, DuckDuckGo, kicks in and does a search for " about:config"

I host a website, and don't want browsers (particularly Firefox) offering modified versions to others. Is there a header or something I can set webserver-side to disallow Firefox from offering the option?

This doesn't work:

add_header Cache-Control "no-store, no-transform, public" always;