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

cannot open thunderbird after updating to Windows 10 April 2018

  • 4 replies
  • 1 has this problem
  • 1 view
  • Last reply by Jeffr42

more options

Thunderbird will not open after updating Windows 10 using the "April 2018" update just yesterday. When trying to open Thunderbird I get an error message saying that I need to restart my computer. I've done this restart at least 6 times. I've tried to uninstall / reinstall Thunderbird, but it won't let me, giving the same error message that I need to restart my computer. I cannot open Thunderbird in "Safe" mode either. I tried to run a compatibility test but again, I get the same error message. Help?

Thunderbird will not open after updating Windows 10 using the "April 2018" update just yesterday. When trying to open Thunderbird I get an error message saying that I need to restart my computer. I've done this restart at least 6 times. I've tried to uninstall / reinstall Thunderbird, but it won't let me, giving the same error message that I need to restart my computer. I cannot open Thunderbird in "Safe" mode either. I tried to run a compatibility test but again, I get the same error message. Help?

All Replies (4)

more options

What is the exact error message?

more options

This is the complete message: Your computer must be restarted to complete a previous upgrade of Thunderbird. Do you want to reboot now? (yes / no option boxes) Thanks for taking a look.  :-)

Modified by Jeffr42

more options

Chosen Solution

more options

Thanks very much!!!