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!

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.

Cannot install an addon

  • 3 replies
  • 1 has this problem
  • 1 view
  • Last reply by ajawamnet

jimoe
jimoe
more options

TB v91.7.0

I download an extension from the Mozilla download site; I have tried 3 different ones so far. I select "Install Addon from file...". The result is ALWAYS "This addon cannot be installed because it appears to be corrupt."

What am I missing?

TB v91.7.0 I download an extension from the Mozilla download site; I have tried 3 different ones so far. I select "Install Addon from file...". The result is ALWAYS "This addon cannot be installed because it appears to be corrupt." What am I missing?

Chosen solution

The problem is that the addons are not compatible with this version of Thunderbird.

Read this answer in context 👍 0

All Replies (3)

TyDraniu
TyDraniu
  • Top 10 Contributor
more options

Have you tried addons from addons.mozilla.org?

jimoe
jimoe Question owner
more options

Chosen Solution

The problem is that the addons are not compatible with this version of Thunderbird.

ajawamnet
ajawamnet
more options

No addon can be installed. Version 91 is broken. Please fix.