Does not work. After signing into the website and my paid premium account, the add-on indicates that I am not signed in. I tried to get help from customer support but they couldn't fix it.

Great application, but Microsoft seems to remove it after updates. I need to go back in to have it work on emails and such. I still love this app.

Used to be good, but now is constantly advertising "premium" features which were standard. Using LanguageTool now
https://addons.mozilla.org/en-US/firefox/addon/languagetool/

This always corrects My spelling and it is helping me understand how to write more. The only thing i don't like is when rarely I write in another language it wants to correct it. Anyways 10/10 would recomend people who struggle with writing or are learning

Used to like it, but with "premium suggestions" that can't be disabled it turned from helpful to insufferably annoying. Switching to LanguageTool, hope it'll be better. If not - I'll be better off without a grammar checker than with something that just doesn't like my writing style and won't shut up.

Only a 1 star for now because if your using dark mode, the red line for misspelled words doesn't show up anymore. :(

To note I'm using the extension Dark Reader and FFs own Dark Mode.

works, but much worse privacy than the mozilla's recommended languagetool addon (https://addons.mozilla.org/en-US/firefox/addon/languagetool/)