Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

My latest copy of Thunderbird runs so s..l..o..w that I can't use it. What is the cure?

  • 1 reply
  • 2 have this problem
  • 7 views
  • Last reply by Matt

more options

When typing an email.. Thunderbird "locks up" and stops typing.... Often says [at the very top of the screen on the left] "Program not responding".... I just installed Office365 and the Microsoft Techs had to put in a "new" Windows 7. THAT is when the problems began. I have installed software to "clean the system" and regularly use spyware remover.

When typing an email.. Thunderbird "locks up" and stops typing.... Often says [at the very top of the screen on the left] "Program not responding".... I just installed Office365 and the Microsoft Techs had to put in a "new" Windows 7. THAT is when the problems began. I have installed software to "clean the system" and regularly use spyware remover.

All Replies (1)

more options

What anti virus are you using.