Mark All Read:WE 2.1
by TurtleTec
Mark all read (Web extension) - Adds a toolbar button to mark all unread messages in current folder as read.
*Note*
Version 2: Requires Thunderbird v128+
Version 1: Works best with Thunderbird v91+
About this Add-on
*Note*
Version 2: Requires Thunderbird v128+
Version 1: Works best with Thunderbird v91+