Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Specify Window position

  • 4 replies
  • 1 has this problem
  • Last reply by robob1

more options

Hey Folks,

Is there anyway to specify the screen position and size for Thunderbird to use for new windows? It opens email windows that cover something I have open on the left side of the screen.

Thanks, Robefrt

All Replies (4)

more options

TB should open received messages or new ones in a window that has the same size and position as the last window of that type that was opened, even between TB restarts. So, if you set the size and position, it will be remembered. If it isn't, try this: Help/Troubleshooting, click Show in Finder, close TB, rename xulstore.json, restart TB. Note that this the same as 'Reset toolbars and controls' from the safe mode prompt, and will reset any toolbar customizations (xulstore is the modern version of localstore.rdf).


more options


I had to do the safe mode prompt checkbox as the json file was MIA. Yes, I did search for it before closing Thunderbird. I suspect it is in a hidden folder.

Messages now display in the correct position. Thunderbird still opens wider that it should.



more options

To fix the main TB window not remembering its size and position, you may have to also delete session.json from the profile folder, while TB is closed.


more options

So it worked once or twice but then the mail windows went back to opening across most of the screen.

Will try the Safe Mode checkbox again and the session.json.

This is most annoying.

macos 10.13.6, Thunderbird 68.5.0 64bit.

Thanks, Robert


Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.