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There is a folder in my Downloads folder ('~/Downloads') called 'thunderbird.tmp' Whenever I delete it it reappears whenever I open Thunderbird. How do I relocate this because I like to keep my Downloads folder neat? I have not found an option for this anywhere in settings on the app.

When trying to set Firefox to open a file on Windows 11, it is overwritten by Firefox Nightly. I have both branches installed.

This is how it goes when attempting to set Firefox as a default application in my machine:

1. "Apps > Default Apps"
2. .mp4 (for example)
3. click the button below that displays the current default application
4. Firefox Nightly appears in this menu
5. "Choose an app on your PC"
6. "C:\Program Files\Mozilla Firefox" ... "firefox.exe" ... "Open"
7. Firefox Nightly remains in this menu

I cannot get Firefox to appear as an available app in this menu. The only workaround, although inconvenient, is to drag and drop files straight into Firefox.

Any help would be much appreciated. Thanks.

Ich benutze Thunderbird gewühnlich in Deutschland und bin jetzt in Chile (+4 Stunden). Das Notebook zeigt die chilenische Zeit an (CLT), die Nachrichten werden aber mit UTC, also +3 Stunden, gespeichert und angezeigt. Wie kann ich die Zeiten der Bearbeitung und Speicherung in CLT (wahlweise in MEZ, deutsche Zeit) speichern.

In Thunderbird, I am trying to create an email filter, however, the screen/window display will not show the "OK" button to allow the filter creation to be saved for usage. After several hours, I have tried all the resolution changes, "resizing" the screen/window, "window" stacking, cascading etc, - nothing works to lengthen the screen to show the "OK button. I have other filters created previously, that work, but editing with changes have the same display issue. (HP Pavilion laptop-Windows10, i7) It appears that the bottom of screen is in a fixed position -see screenshot.

Any suggestions appreciated,

Hello, when i put a message in the garbage can, thundirbird open immediately a new message. sometimes i think that the new message is the old one and i put it in the can without reading it... So, i would like that thundirbird does not open a new message when i put one in the garbage can, i want it open a message only if i clic on it manually, not automatically. Is it possible in the settings ( i have not found)

thanks.

As soon as I click on the Thunderbird Icon to start Thunderbird I get a Yahoo Page covering over my Thunderbird page with no practical way to remove the Yahoo page permanently? This is like a scam page or something from a devious hacker?

Using Acronis True Image for Western Digital (ver 2025 build 41936) to backup my files on a daily basis. Recently the backup program has been stopping and reporting that it cannot access some Thunderbird files, even when Thunderbird was not running (1st image) I tried 'Compacting all Folders' in Thunderbird but the result was the same (2nd image). Lastly, I tried clearing the cache - the result is the same. In all cases Thunderbird was not running during the backup.

i realize that this is not a Thunderbird issue, but I've been unable to get help elsewhere. I wondered if anyone might have a solution since Acronis apparently sees the file as being accessed - is there a way to remove that?

When I tap a text box to type on some webpages, the page automatically zooms in, making me have to manually zoom out again. I understand why this might be helpful to some people, but I just find it frustrating. Is there a way to disable it? I don't see anything in the accessibility settings and I've tried making my font size bigger, but that didn't work.

on my desktop computer when i click on a message thete is another window to the right of the message withe the opened up message. I can't get this to happen on my laptop computer.

Good morning; while trying to configure Thunderbird, I accidentally disabled the shortcut buttons I always use. Unfortunately, I can't find the location in the settings where I can re-enable them. I've attached a screenshot. I'd appreciate your help and pointing me to the right place. Regards.

My folders used to show a yellow diamond when there was new email in the folder. The folder colour does still change to blue to indicate unread email. When I open a folder, the yellow diamond still shows up on new email, as well as the unread flag. What have I done? How do I configure Thunderbird to show that yellow diamond on folders with new email?

Hello,

I'm new to thunderbird and i'd like to customize the layouts. I increased the width of the spacesbar by messing with the userChrome.css. however now it is overlapping on the other panels... I managed to fix it on the mail panel, but not the others. (see attached) can you help me find the proper CSS property?

thanks you.

After a recent change the browser scroll always goes to the bottom of the page. Before it was always at the top of the page. I found no way in Firefox to reset this function.

Hi

When Thunderbird is started maximized it overlap taskbar if is set to hide and taskbar won't show until Thunderbird is minimized and maximized. Another way is to press the Win key two times. Then the hided taskbar can be shown/use. The same thing happens to Firefox. Only when is first started. Then if Firefox is minimized and maximized, press Win key two times, press F11 two times then the hided taskbar show/hide normal.

It is a setting that can be changed to start Thunderbird and Firefox in full screen and do not overlap hided taskbar?