Garbage. Makes you constantly log in, but won't actually work on Google Docs or most other things. Even clicking on the extension shows a blank space. Grammarly has abandoned Firefox and should just admit it.

add more languages!

It keeps asking me to login, after I login. It only works if I'm logged in. Never stays logged in.

When I open the browser, it asks me to log in. I log in. It then asks me to log in again. I log in. It asks me to log in. I restart browser. It asks me to log in. I log in. It asks me to log in again.

WHAT IS THE POINT? Log your addon until it works.

Was useful for a few years despite sometimes slowing down the browser, then started feeding garbage to its IA to train it, resulting in crappy "corrections". It's now only good to write sms full of misspelled words.

the generative AI, which is the best feature of this app, doesn't work on Firefox.

Charging $300 for not working app. Crap

A wonderful help to anybody who wishes to write correctly in English!

It has so many bugs, and they just don't care.
It is working only sometimes. Right now, to write this review, it started to correct and... stopped.
On another tab? Nothing. No sign of correction. I just need to find some other service like that that works.