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

Natao arisiva ity resaka mitohy ity. Mametraha fanontaniana azafady raha mila fanampiana.

Haven't used TB Help in long time. I have a new email address; want to register with that but can't find a way to do this. Also my TB got very slow 3 days ago.

more options

1) I've tried to register my new email address and can't find a way to do that. Sign In doesn't work for this. Cannot find a "Register" function. 2) Three days ago my TB slowed way down and each task takes about 10X the normal time. I keep getting the message "TB not responding." After a while, this clears but then the next task takes 10X the normal time also. I'm receiving and sending email fine. All else looks normal. I have no viruses. I cleared out my Sent file, thinking this would give me more space, but that has not worked. Nothing else has changed on my desktop to slow TB down. Can you help? Thanks!

1) I've tried to register my new email address and can't find a way to do that. Sign In doesn't work for this. Cannot find a "Register" function. 2) Three days ago my TB slowed way down and each task takes about 10X the normal time. I keep getting the message "TB not responding." After a while, this clears but then the next task takes 10X the normal time also. I'm receiving and sending email fine. All else looks normal. I have no viruses. I cleared out my Sent file, thinking this would give me more space, but that has not worked. Nothing else has changed on my desktop to slow TB down. Can you help? Thanks!

All Replies (5)

more options

To create a new account in Thunderbird:
https://support.mozilla.org/en-US/kb/automatic-account-configuration

Wrt the "TB not responding" problem, what is your anti-virus software?

more options

To diagnose problems with Thunderbird, try one of the following:

  • Restart Thunderbird with add-ons disabled (Thunderbird Safe Mode). On the Help menu, click on "Restart with Add-ons Disabled". If Thunderbird works like normal, there is an Add-on or Theme interfering with normal operations. You will need to re-enable add-ons one at a time until you locate the offender.
  • Restart the operating system in safe mode with Networking. This loads only the very basics needed to start your computer while enabling an Internet connection. Click on your operating system for instructions on how to start in safe mode: Windows 8, Windows 7, Windows Vista, Windows XP, OSX
If safe mode for the operating system fixes the issue, there's other software in your computer that's causing problems. Possibilities include but not limited to: AV scanning, virus/malware, background downloads such as program updates.
more options

I have McAfee thru Time Warner. I spoke with both TW and McAfee re the slowing of TB during the week of 4/7/14. McAfee is now aware of the problem is working on it. I was told today 4/15/14 that a fix was imminent.

more options

Don't hold your breath.

For issues with McAfee check this article.

https://wiki.mozilla.org/Thunderbird:Testing:Antivirus_Related_Performance_Issues#McAfee