We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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.

not responding

  • 1 reply
  • 2 have this problem
  • 1 view
  • Last reply by Toad-Hall

kelleyspc
kelleyspc
more options

unable to send or open mail . Message in browser is Mozilla Thunderbird not responding

unable to send or open mail . Message in browser is Mozilla Thunderbird not responding

All Replies (1)

Toad-Hall
Toad-Hall
  • Top 10 Contributor
more options

If thunderbird was updated recently then it is possible your Firewall is blocking Thunderbird.

Firewall may be part of your Anti-virus package. Do not switch Firewall off. Access Firewall and set Thunderbird to be allowed.

I have Norton and whilst it has been behaving recently, in the past, I had to Close Thunderbird, access Norton firewall, set to block thunderbird, ok it, access again and set Thunderbird to allow and ok it. Restarted thunderbird and all was up and running again.