Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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 already active

more options

After a wondows 10 update, thunderbird gives a message: "Thunderbird is already running" and won't start.

Reboot didn't help.

I have uninstalled and reinstalled Thunderbird ( downloaded the latest version) No succes

help ...

After a wondows 10 update, thunderbird gives a message: "Thunderbird is already running" and won't start. Reboot didn't help. I have uninstalled and reinstalled Thunderbird ( downloaded the latest version) No succes help ...

All Replies (1)

more options