We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

add on not verified despite changing option in about:config

  • 2 replies
  • 1 has this problem
  • 4 views
  • Last reply by brynn2

brynn2
brynn2
more options

Hi Friends,

I'm trying to import mail to Thunderbird on Windows 10, from a cd, where it was exported from Windows Live Mail in Windows 7. I found this page, which explains about installing an add-on, which will allow the import. https://support.mozilla.org/en-US/kb/switching-thunderbird#w_importing-windows-mail-messages

I've downloaded it, but when I try to install, I get an error message that says "The addon could not be installed because it has not been verified. Learn more...." When I click Learn more, it tells how to change and option in about:config, which I did change, and restarted Firefox.

Then I tried again to install the export add-on, but I keep getting that same error message about not being verified.

Could someone help me with this?

Thank you very much  :-)

Hi Friends, I'm trying to import mail to Thunderbird on Windows 10, from a cd, where it was exported from Windows Live Mail in Windows 7. I found this page, which explains about installing an add-on, which will allow the import. https://support.mozilla.org/en-US/kb/switching-thunderbird#w_importing-windows-mail-messages I've downloaded it, but when I try to install, I get an error message that says "The addon could not be installed because it has not been verified. Learn more...." When I click Learn more, it tells how to change and option in about:config, which I did change, and restarted Firefox. Then I tried again to install the export add-on, but I keep getting that same error message about not being verified. Could someone help me with this? Thank you very much :-)

Modified by brynn2

Chosen solution

The add-on is for Thunderbird, so you need to install it there instead of Firefox. Maybe this article will help: Installing an Add-on in Thunderbird.

Read this answer in context 👍 0

All Replies (2)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
more options

Chosen Solution

The add-on is for Thunderbird, so you need to install it there instead of Firefox. Maybe this article will help: Installing an Add-on in Thunderbird.

brynn2
brynn2 Question owner
more options

Oooohh, ok.

Yes, that was the problem. Now I have successfully imported the email!

Thank you very much!