Grammarly is great and works perfectly for me. Notifys you of the simplest mistakes and things you may want to double check. While it may noe always be 100% accurate, it's great how it points things out so you take the time to check whether you're right or not.

One star is only to grab attention. this is a 5 star plugin but recently since firefox quantum, the plugin is unable to correctly underline the words (misaligned underlining)

Honestly, Awesome thanks fireFox . Lot of Love

its OK, they spam you way too much

I love grammarly but unfortunately the extersion is really bad on Firefox quantum.

Doesn't work with various sites i frequent.

It's okay, helpful to know what you want to do!

Absolutely great! Best thing to come along since Bullfighter from Deloitte & Touche back in the 90's! It will definitely help improve your writing skills.

Simple and usefull

This extension often hides the headings above the text boxes. I am clueless about what to fill in the text box. Please fix this bug ASAP!

Destroys textareas, super buggy in newest Firefox

Doesn't work even on this review text box.

This grammar add on helps me with spelling of words or replacement of words while texting or emailing. I really enjoy this feature