Review for Hide C. Titlebar Plus Lite by newton181
Rated 5 out of 5 stars
Excelent addon, app button in Thunderbird is not the style of mozilla apps, only one detail, there a "visual bug" with TTDeepDark Theme, the new button is over the tabs in the left side.
This review is for a previous version of the add-on (1.2.2).To create your own collections, you must have a Mozilla Add-ons account.