Melhor ferramenta para o português que testei até agora. Vale a pena e funciona bem com o Firefox.

requires a paid plan to use.

I think I lost some written text because of this extension - the text was there, but after submitting it in Teams, half of it was gone.
In jira comments it messed up words if I tried to correct them.

There is clearly a significant memory leak issue on Firefox. As a paid subscriber, I am no longer able to use it. Firefox freezes and becomes unusable.

I am a premium user, and unfortunately the Firefox extension is causing serious issues. It consumes up to 32 GB of RAM, which makes my computer freeze and eventually restart on its own. This is not an isolated case — it happens on two different computers, so it’s clearly not a hardware issue on my side.

This makes the extension completely unusable despite paying for the premium service. I would expect much better stability and performance from a paid product. Please investigate and fix this as soon as possible.