Grammarly is a great add on to use to fix your writting!

I have been using Grammarily for some time. It has been very useful for spelling and a lot of commas. I have rewritten some paragraphs for clarity which is also helpful. It occasionally makes verb errors with compound sentences. Sometime it wants me to change a word but it will change my meaning or emphasis. I do think it is a useful tool and have renewed my subscription.

HORRIBLE! They frequently highlight words that are proper, not only in spelling, but proper in grammar usage. This happens with just about everything I type, so I removed their ad-on completely and will never use them again.

Stopped working few weeks ago. And when it did on some website after correction cursor jumps to the end of the text

does not work most of the time, Just not compatiable with Firefox version 87