Rated 2 out of 5 stars

This add-on crashes the email view—both in the Message Pane and when reading an email in a new tab—leaving only blank space, making it impossible to read any emails. This issue particularly occurs after reading formatted emails, like those from AliExpress. It also conflicts with the 'Dark Reader' add-on, so you'll have to choose between the two.

The blank space is not a "crash". A "crash" would cause the program to exit.

The issue is under investigation but has not received any details, so it is difficult for the authors to be able to do anything: https://github.com/thunderbird-conversations/thunderbird-conversations/issues/2121

Unfortunately dark mode is a long standing issue that the authors do not have time to work on.