It used to be my favorite translator because it was so simple: 1click to translate, 1click to return to the original...
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Having neither found the solution nor understood your explanation, I had forbidden the Firefox update, because despite having configured not to update your extension, it was still being updated with the Firefox one. I just tried the FF update again yesterday, (from 119 to 121) and then miracle, the extension works again as before, same update, so I don't know who was guilty, the extension or Firefox. In any case, I'm happy to be able to continue using it.

Esta é a melhor extensão de tradução. Ela traduz páginas inteiras ao simplesmente apertar o botão do idioma no qual você deseja ler. Não é necessário colar uma frase ou texto para depois ir na extensão de traduzir. Essa extensão faz isso de forma automática sem sair da página da web.

This extension works exactly like in Chrome, in realtime. Great.

I often relied on the translation implementation on Chrome, hence I hesitated to switch to FireFox. I found this extension which works exactly like in Chrome, no hassle, no API registration process, no new tabs, it's perfect. Thank you.

Ótima extensão. Traduz de forma rápida e precisa.

Seamless

Одно из лучших расширений из всех. Максимальная польза. Спасибо!

My favourite translation tool. Powerful and with a very clean interface. On par with the chrome built-in translation!

I have to say this is BY FAR the best translation option I have found in any web browser. As someone who frequents non-english websites it has been the only option I have found to successfully actually translate entire pages. Other translators always missed sections, and required me to constantly "Toggle" the translation for it to grab more and even then it stilled missed parts of web pages.

This is 100% never leaving my browser, Thank you!