Review for CompactHeader by My_Nick_Name_Is_Not_Taken
Rated 3 out of 5 stars
1.2.0 seems to actually hide the headers when the +/- symbol is clicked. Thunderbird needs to be restarted after doing this to make the headers visible again.
This review is for a previous version of the add-on (1.2.1).To create your own collections, you must have a Mozilla Add-ons account.