Although it's supposed to suport both British and American English, it will always defer to American English, and there doesn't appear to be a way to choose British English as the default. For instance, 'In future' (British correct usage for 'from now on') is always highlighted with a suggestion that it should be 'in the future' (American usage).

That said, it's a great tool, and I havn't stopped using it ;)

Great Tool!
Thx a lot!

best I've ever seen with mnany features all-in.one. Really great, and includes my main lannguage: Cayalan

Indispensable

Very happy with this extension. Best of all it being free. I would not use if they wanted to charge. But it is very well developed. Thank you!

Even the premium version does not show simple article mistakes, and also the support team does not answer the questions.

My feedback was constructive with specific examples. You can check the emails. I received email from Christopher Blum at 12:51 Thu 12/11/2020 (EST).

schnell und übersichtlich

First word I checked said it was too short. Pointless!

Absolutely essential!

Très efficace en langue française :)

excelente me ayuda mucho lo recomendaria

So far it seems to work pretty good. It catches a lot mistakes.

The return of the great addons for Firefox. Now I can argue online and not worry about embarassed about Grammar :D