I submited the solution of fixing blank popup page issue via their support as a paid user long time ago, but their support refused to pass the message to devs...

Great tool for online teaching as it catches my typing errors and helps me with edits for my students

I do have a subscription for Grammarly, but I can't get the addon to work, it shows me a warning "the add-on may be corrupted" and not even install the file. any thoughts?
Thanks.

Good way of writing

Since I started using it, I discovered many mistakes that I was doing on regular basis. With time I started to learn new writing habits and avoid old mistakes that I wasn't even aware of before.

The Grammarly Add-in for Firefox is amazing. I don't think I could live without it (I'm not willing to find out). The only small drawback is that it can be quite slow with coming up with replacement suggestions. Even though my laptop is quite high-end. But overall, this is a very useful addon and I highly reccommend using it.

A very useful tool for work.

I give Grammarly 5 stars. The reason is not only will Grammarly correct my spelling but it also corrects my punctuation and my grammar. Also, it will tell me why the error is wrong and give examples of how to correct my mistake which I find very helpful. Another thing I love about it is I don't have to go click to turn it on, Grammarly is on automatically. One of the best things about Grammarly is that it's free. You can pay for it to do other things for you but it's an option and it won't keep asking you to pay for it. I just love Grammarly, I use it daily, and I will tell other's about Grammarly as well.

Grammarly improves my correspondence on the internet. It gives me suggestions to improve my spelling and grammar.

Grammarly has helped me improve my Writing and Grammer, I really love this add-on!

I tried adding a forum post to MSDN. It appeared peppered with all the HTML source/tags from Grammarly attempting to fix my technical words that it didn't understand. Hence I had to copy/paste to notepad, remove them all, uninstall grammarly then paste the text back into the forum post.

Grammarly is wonderful. I am very accurate with spelling and writing but I do occasionally fat finger while typing and Grammarly is awesome for covering that.

It is a very useful and free app. I love using it!

Does the job extremely well.

This is a great product. I can't believe how bad my grammar was. Thank you

This is a wonderful app. Using the app is easy to use and is a wonderful tool. When browsing my email or commenting on posts, Grammarly gives suggestions to using proper grammar and catches my bad spelling errors. Now, I write messages, knowing that I sound great!

I don't mind admiting that, spelling was never my best subject at school, having Grammarly for Firefox, has helped me more in the last 6 months with grammer, spelling, and English, than ever before. It's like a friend holding your hand, I would be lost without it now. :)

kindly add-on. recommend

Super

I am perfectly satisfied with this add-on since I am using it actively for three months. So far, I have not recognized any disadvantages. I like weekly reports followed by the tips. Tips are raising my language skills to a higher level.

I find that this add on keeps me on top of my game. Very helpful in many areas of my work thank you.

It is helpful sometimes, but many times it is annoying. You cannot get a good answer or it is suggesting things incorrectly. There is no way to add to the dictionary if it "thinks" you are wrong. Any terminology outside of an 8th grade education level is not understood.

The biggest deal is on some form-fill-in sites using the later HTML5 code, parts of the form disappear. I just went back to the old spell checker.

I may check it out again in a couple of years. I would NOT pay for a subscription. The beta is not ready for charging any money. There is No Way I would pay. This add-on is very buggy.

Great for checking grammar

I've tried others but for me Grammarly is the best writing help available. I recommend it to everyone. The free version is fantastic.

I think Grammarly is great even though I only use the basic one as I am a Pensioner & would love to do more, Unfortunatly that is beyond my reach but please do keep up the good work as Grammarly is an EXCELLENT PROGRAM so thank you for allowing me to use it, Kindest Regards Henry.