Rated 4 out of 5 stars

Not yet compatible with TB 3.1.3. Pleazzzzz!! Thanks

This review is for a previous version of the add-on (0.9.5). 

Resolved!

Version 0.9.6 which is a compatibility update for both TB3.1+ and AC1.2.1, is now under review at AMO. I appreciate that they were very responsive in publishing recent ME update to 0.9.5 and think it will not take much time for this new update to go public and available for auto-update.

Rated 5 out of 5 stars

Excellent!
Could you please make it available for Thunderbird as well?
Many thanks in advance

This review is for a previous version of the add-on (0.9.0). 

Thunderbird support

Added in 0.9.1. Please test.