I added the Invidition add-on to Firefox Extensions – My Picks. Invidition is a fairly nice add-on that redirects all links to YouTube videos and embedded YouTube videos to one of the Invidious instances which provide an alternative front-end to youtube.com. By using the add-on one can avoid youtube.com completely whilst still being able to watch YouTube videos. Think privacy.
As for the state of the Mozilla Firefox Add-ons site (AMO), it is in sad shape. Many of the new add-ons being published are garbage and many contain what i broadly define as malware. While Mozilla's choice to discontinue the older XUL add-ons in favor of Web Extensions is nice for security, the move has resulted in an influx of developers apparently coming from Google Chrome since both browsers use essentially the same extension API. The fallout from these changes, as well as the implementation of an automated extension review system, has resulted in a significant number of malware containing add-ons being published to AMO every day. While these malicious add-ons seem to be removed from AMO within roughly 24 hours, they still present potentially serious risks for those who install them before they are removed and disabled.
I think a lot of the innovation that once surfaced on AMO has dried up and it's rather sad and annoying to see that replaced with money hungry morons, among them a bazillion VPN providers with piss-poor "privacy" policies, and piles of "Adobe Flash" add-ons, virtually all of which are outright malware. It's also frustrating to watch hundreds and even thousands of ignorant sheep installing this garbage.
If you have a desire to help Mozilla do what it damn well should be doing without your help, create a Firefox Account, go to addons.mozilla.org and start down-voting and flagging these malicious add-ons.