The extension's "incorrect suggestion" button and some other controls stopped functioning a few months ago. This is pretty annoying. It seems like it works in a few isolated websites, like when I am writing this review. But not where it is most critically needed. Please fix this Firefox extension app. I am a premium Grammarly subscriber. My entire career and activities are in Firefox. Not all people are Chrome users. Some still appreciate and advocate competition and free world.

It stopped working on Firefox.

Very good

At Tooltivity.com, we manually test productivity browser extensions and provide honest and detailed reviews.

Grammarly received an impressive rating of 8.8 in our tests. We evaluated it based on features, design, ease of use, security & privacy, value for money, and performance. You can find the full test report here: tooltivity.com/extensions/grammarly

Grammarly (Spellcheck flags the name "Grammarly" as being misspelled, the irony in that is too much!) I left 4-stars a few months ago, but my review did not get printed for whatever reason, probably due to all of my misspelled words. Actually, it is a pretty good little program, easy to use, not complicated or confusing, and the cost is very reasonable. Take advantage of the FREE trial of the PRO version and you will see in a few days if it is going to work for you.