Pretty much all spellchecker extensions now suffer from this problem, but about half of the suggestions I get nowadays are not helpful and about one-quarter are simply wrong.

Paid extension after a while.

It's ok overall - I use it through my university's account so I don't need to pay for it. That's the only reason I use it tbh. But, when I went to install the desktop version today, it opened Chrome to install there as if that was my default browser (which it is not!). In addition to that, the little bubble that pops up in Firefox can be incredibly annoying. In most cases, it either doesn't want to move out of the way of the text I'm typing so I can see what I'm typing, or it'll give me a suggestion that I'll click on and then it won't change anything! If I weren't getting the paid version through my school tuition, I would definitely not buy it or use the (very limited) free version.

Grammarly keeps disappearing though?

I like it!

Fix that garbage. The problems with sign in are just joke. Your excuse with conflict with certain adblock is also a joke as i do not use any on youtube as a premium user.

Its infuriating that they started forcing me to see a million gold lines all over my essays for 'premium suggestions'. It is distracting, the suggestions are stylistic and useless, and there is no way to disable them. It is disgusting how greedy and unhelpful it is. Best find a different extension if you're just looking for grammar and spelling corrections.