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

Not responding - just started yesterday - but works fine in offline mode

more options

When I start Thunderbird, it works fine for 30 seconds. Then, attempting to click on any email on the list view grid causes a "Not responding" message. This just started yesterday. My profile is 2 GB. I've got about 9000 messages in the program. Disabling Norton AntiVirus doesn't help, nor does running TB in safe mode or running Windows 7 in safe mode with networking.

My provider is GMail, and I've got TB set to retrieve in POP mode. It's been running fine for 10 years this way. Nothing that I know of changed yesterday. I was on 45.x and updated to 52.1.1 32-bit after this happened hoping that would fix it. I also rebuilt the global index, and deleted and reinstalled TB.

If I run in offline mode, everything is fine. I can pull up any message with no delay. The second I turn it back online however, it started freezing up again.

I created a new profile and copied the account settings and the mail folders. The same thing happens now in the new profile.

Any ideas?

When I start Thunderbird, it works fine for 30 seconds. Then, attempting to click on any email on the list view grid causes a "Not responding" message. This just started yesterday. My profile is 2 GB. I've got about 9000 messages in the program. Disabling Norton AntiVirus doesn't help, nor does running TB in safe mode or running Windows 7 in safe mode with networking. My provider is GMail, and I've got TB set to retrieve in POP mode. It's been running fine for 10 years this way. Nothing that I know of changed yesterday. I was on 45.x and updated to 52.1.1 32-bit after this happened hoping that would fix it. I also rebuilt the global index, and deleted and reinstalled TB. If I run in offline mode, everything is fine. I can pull up any message with no delay. The second I turn it back online however, it started freezing up again. I created a new profile and copied the account settings and the mail folders. The same thing happens now in the new profile. Any ideas?

Modified by ccutler

All Replies (1)

more options

Read and follow the advice in this article to see if that helps. Keep it working - Thunderbird