Rated 5 out of 5 stars

per Firefox user 564cef el nov. 29, 2025 ·

normally themes are not all that interesting, but this one was beautiful and easy to read. it makes me want to return to thunderbird again. great job

Rated 5 out of 5 stars

per DJF el oct. 15, 2025 ·

Stiff_Cheesecake,

Classic BB is a lovely theme. It's colours work beautifully with each part of Thunderbird. As if by magic, my screen looks better organised. You've made Thunderbird much nicer and clearer to use. Many thanks.

This review is for a previous version of the add-on (1.42.2). 

Rated 5 out of 5 stars

per Tolomeia el oct. 13, 2025 ·

Nice theme ! Is there any tool that permits to edit the manifest and test easily any theme change ?

This review is for a previous version of the add-on (1.42.2). 

per Stiff_Cheesecake (desenvolupador) a oct. 14, 2025 ·

You can find all useful info on the Mozilla websites. xpi files are just zip files with changed extension, you can unpack them easily and modify any theme you want.