Rated 5 out of 5 stars

Just to inform all of you that I contacted the author who told me that he doesn't use TB anymore and does not intend to update this extension for TB 68+
Topoldo

This review is for a previous version of the add-on (7.1).  This user has 4 previous reviews of this add-on.

Due to the large number of requests from users, Calendar Tweaks has been updated to be compatible with Thunderbird 68 and Lightning 68.

Calendar Tweaks 8.0 is fully compatible with Thunderbird 68 and Lightning 68. This new version retains all of the original features and includes some minor improvements and bug fixes.

Calendar Tweaks 8.0 has been submitted to the Thunderbird team for review and should be released in a week or so.