It does not work with the Bulgarian language. It recognizes it as Russian. You have an option for Bulgarian but it does not work.

No clear instructions for adding this add on to a android Firefox browser. Can't do a thing with it.

It misses many basic grammar errors. I also don't like the message "we found 'issues' but pay to find out what they are" can't be turned off.

While it is working in normal circumstances, this addon breaks eBay! When listing new item for sale, eBay form is blocked from working, and typed formatted text does not translate to HTML and item description remains empty. This breaks even existing eBay listings, when you click to edit a listing, click text field, description is completely gone, submitting listing with changes will cause entire text gone! Please be careful when working with big text fields, this addon is not compatible with everything!

Typed a few sentences, it corrected a few errors, then told me I needed to pay for premium to detect any further errors.

Premium might be worth it for some people, but for me it's not that serious. I can live with the occasional grammar mistake.

Não está funcionando no Firefox. Utilizo essa extensão em todos os navegadores que uso a anos, é a melhor.
Mas infelizmente no Firefox ela não funciona em nenhum campo ou documento de texto.

Not much use, doesn't detect grammar issues and has very limited options for guessing what you were trying to type. Turned it off almost immediately.

Does not work

This extension is just as useless as Grammarly.

Suddenly stopped working on FF but continues to work on Chromium based browsers.

This addon DOES NOT autocorrect words as you type.

No good addon. Look elsewhere guys

It's very helpful if your time is worthless: it shuts down more and more of it's most useful feature for a paid version... even firefox default is catching up

Except for the constant ads that tell me I would need to pay for an upgrade just to see other errors, I would have rated it higher. I am almost ready to report it for abuse.

Das Tool findet mehr Rechtschreibfehler als Microsoft Office 365. Respekt! Aber die Geschwindigkeit des Tools ist ein wahre Katastrophe. Ein Dokument über 1.000 Seiten prüft es abschnittsweise. So weit, so gut. Aber wenn eine Prüfung 15 Minuten dauert, und das immer wieder, dann ist es untauglich.
Ich bereue den Kauf zutiefst!

Japanese version is completely useless lmao