Update: Sadly, it's not completely broken. I can't even restore a previous backup.

This is is exactly what I needed. I was tired of how bloated PocketTube were, and wanted something simpler.

The tab name should be moved a little to the left to allow for slightly longer names. The tab color thickness should be customizable, it's a bit too think as-is.

PS: To export/import your tabs, go to the help menu via the "?" next to the "Subscriptions" header in the sidebar. Import/Export buttons are at the top left and right.

IF YOU CREATE VARIOUS GROUPS, THEY DO NOT STAY IN THE ORDER YOU HAVE PLACED THEM. AS WHEN YOU DO SOMETHING ELSE, THESE GROUPS DO NOT STAY IN PLACE, THEY MOVE.
BECAUSE OF THAT ALONE, THIS ADDON IS UNUSABLE!!!