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.

How to fix "not responding" that happens periodically?

  • 4 replies
  • 1 has this problem
  • 1 view
  • Last reply by christ1

hmcleskey
hmcleskey
more options

I can read one or two e-mails and then the "not responding" comes up and it may be 3 0r 4 min. before it starts again. Then sometimes when I open Mozilla it says "not responding".

I can read one or two e-mails and then the "not responding" comes up and it may be 3 0r 4 min. before it starts again. Then sometimes when I open Mozilla it says "not responding".

All Replies (4)

christ1
christ1
  • Top 25 Contributor
more options

What is your anti-virus software?

hmcleskey
hmcleskey Question owner
more options

Norton

hmcleskey
hmcleskey Question owner
more options

Norton

christ1
christ1
  • Top 25 Contributor
more options

Try to start *Windows* in safe mode with networking enabled.

- Win8 http://windows.microsoft.com/en-US/windows-8/windows-startup-settings-including-safe-mode

- Win7 http://windows.microsoft.com/en-US/windows7/Start-your-computer-in-safe-mode

- XP http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/boot_failsafe.mspx

Still in Windows safe mode, start Thunderbird in safe mode.

- https://support.mozilla.org/en-US/kb/safe-mode

Does the problem go away?