Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Conflict between Firefox and Thunderbird - FF side

  • No replies
  • 0 have this problem
ChrisVS
ChrisVS
more options

When FF is open and then I open TB, several new windows are created in FF. My default FF window disappears and is not present in the windows history. When I reset my computer, sometimes my default FF window reappears. When I do something in FF, TB immediately closes.

At first I suspected TB and put a question in the TB forum. I downgraded TB from 128.2.3 to 115.10.1 after disabling automatic updates of TB. Initially the problem seemed solved, but not so.

I am surprised the FF and TB seem to influence one another.

Working with FF 130.0.1.

When FF is open and then I open TB, several new windows are created in FF. My default FF window disappears and is not present in the windows history. When I reset my computer, sometimes my default FF window reappears. When I do something in FF, TB immediately closes. At first I suspected TB and put a question in the TB forum. I downgraded TB from 128.2.3 to 115.10.1 after disabling automatic updates of TB. Initially the problem seemed solved, but not so. I am surprised the FF and TB seem to influence one another. Working with FF 130.0.1.