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.

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

thunderbird 60 won't start

  • 5 replies
  • 2 have this problem
  • 6 views
  • Last reply by christ1

more options

TB was working fine, suddenly shut down. Tried restart, and it hangs on the opening page, then "not Responding" at top bar. Have to shut down with windows Task Manager. Tried rebooting 3x. Tried new download of TB 60, still hangs. Tried TB "Safe Mode" start, same problem. Running Win 7 pro on a Pent.4 off a SSD. T

TB was working fine, suddenly shut down. Tried restart, and it hangs on the opening page, then "not Responding" at top bar. Have to shut down with windows Task Manager. Tried rebooting 3x. Tried new download of TB 60, still hangs. Tried TB "Safe Mode" start, same problem. Running Win 7 pro on a Pent.4 off a SSD. T

Chosen solution

When your problem is fixed, can you mark the topic as 'Solved' please? Thank you.

Read this answer in context 👍 1

All Replies (5)

more options

What is your anti-virus software?

more options

MICROSOFT SECURITY, no changes in months.

more options
more options

I restored to a prev. point. Turns out that IBM Trusteer/Rapport had updated itself. It's a legacy security program, I've now deleted it. Thanks for your suggestions.

more options

Chosen Solution

When your problem is fixed, can you mark the topic as 'Solved' please? Thank you.