Over the past few months, the extension has been causing severe slowdowns on the tab where YouTube is open, frequently freezing it completely. There are constant issues with the extension's functionality; many features fail to work, and I often have to refresh the page multiple times—or even close it and reopen it via a new link—because it won't load correctly. Using this add-on has become so problematic that I am considering abandoning it altogether. Updates do nothing to fix this; in fact, the extension seems to fail more often with every new update.

Only feature I wanted was to display more vid thumbnails as Youtube has reduced them to 3. Youtube is so STUPID!! This does not overcome the default formatting limiting the display. After install and several page refreshes 6 place holders display in gray for a split second....then loads the restricted giant 3.
Update: I believe I did enable the "Custom Rich Grid Layout"....can't say with 100% certainty. But I can say I installed a different add on, selected 6 wide for my grid and refreshed Youtube and it worked 1st time. No extra steps, no hidden toggles, etc. You may have a great add on....but spending hours or days trying different "features" to achieve my needed result is not time I'm willing to spend. If enabling another toggle is required you should have them linked or noted.

Good when it works, but half of the time it just doesn't.

needed the only function but it was payware

No hotkey for pause.

Shortcut of adding video to playlist does not work!

As of today, it breaks the dark mode on youtube.