Rated 5 out of 5 stars

per Firefox user 4f6086 el feb. 12, 2026 ·

This is a very useful plugin for those of us who have multiple mail accounts in Thunderbird and like to keep the folders compacted. I would say I used to use it more than any other TB plugin. However, it has been broken since TB 140 by a problem in the TB code itself. Apparently, one developer identified the likely issue, but, as far as I can tell, there has been no effort to fix it. I hope this can get some attention. I would even advocate putting this function into TB itself.