Edit : There is another(4th) issue that I have that isn't tied to the latest update that I had to deal with for a while when youtube changed things. The extension is automatically turned off if the tab is refreshed or, for another example, if you restarted your computer and firefox automatically opens to where you left off. Usually I can get around this by going to youtube's homepage and then hitting back.


Edit 2: Issue 1 and 2 are fixed and Comments are working again, rumors seems to suggests that its tied to something youtube was doing. Issue 4 still exists but is not something I think would be worth nocking off 2 stars for so I am changing the score to 4 stars.