Not that great. I was writing a paper for a theatre class, and it told me that I needed to change all instances of "theatre" for "theater." It doesn't really help any more than any built in grammar device anyways, at least the free version doesn't.

Again and I again the customer service told me to uninstall and re-install it.
It doesn't work.
If even it is already enabled Mozilla propose me to install it like it was not present yet.
I am premium client. Disappointing.

Perfect

The drop-down is empty... i am a little bit disappointed. Hope the Tech group can fix this...

It is a great idea but it does not work for me unfortunately, it keeps telling me to log in even though I have logged in a thousand times and I cant get it to review anything I write.

It does not work. Please fix it.

Drop down box is blank. Doesn't run in my FF browser. Have to open the site to check my writing. Have to use Chrome to edit web pages on the fly.

I love this product, it catches things I would never have caught. On the other hand it sometimes misses items but nothing is perfect.

I love this tool, and use it daily. It has forced me to become a better writer. The only complaint is the cost is very high.

LUCKY ENOUGH TO GET IT. NOT ADAPTABLE TO CHAOTIC CIRCUMSTANCES, WONT INSTALL TO FIREFOX ONLY FREEZES ONCE DOWNLOAD IS COMPLETED, NO PROPER RESOURCE FOR OFFLINE USE OR DOWNLOAD. HOW DO YOU EXPECT PEOPLE TO PAY FOR WHAT THEY CANT USE?!!!

Always need to login after every time opening of Firefox. Sometime shows error free, sometimes shows error for some same sentence. After selecting their suggested correction, it pastes the whole sentences again. So disturbing. I can't found any problem in the Chrome edition though.

It's a great add on but doesn't work on every textbox, even isn't working while I type this although the size and sort are OK. Works on whatsappweb making the textbox bigger (adding blank lines). I'll keep it for Gmail spelling check!

I have the same impression as Larry...
Grammarly is a Gremlin Rated 1 out of 5 stars
by Larry on January 25, 2017.
"How do I get rid of this annoying add-on? ...Next uninstall will be Mozilla".

Well, I won't throw the baby out with the bathwater. I intend to keep using Firefox; however, this Add-on has a nag popup that opens another browser tab directly to its home page each time I open Firefox to go to the web- perfect right? Just what anyone would want and expect. This is what I see attached to the end of Grammarly's home address in the rogue tab's URL address bar: "...sign up?page=free extension _install=true breadcrumbs=true"

This just won't go away. Can anyone help me with this annoyance? I like the Add-on. It is a very good tool but I am about ready to dump it.

How do I get rid of this annoying add-on? I've tried uninstalling it, even using a 3d party uninstaller, but it keeps showing up as "installed but needs to complete set-up". Enough is enough!! I want MY control back on MY computer. Next uninstall will be Mozilla.