翻譯時會出現" %20 " 已移除

Why use this at all? Just keep open a tab on Google Translate instead. Or better yet, find an extension that actually does inline translations. There's a few on Firefox Addons.

it doesnt translate the language after you change the main one spanish

請ADD zh-TW 繁體中文語系

this is add-on is very bad :(

Mi traduce in spagnolo, mentre io vorrei la traduzione in italiano.

Good

It only send you to Google translate site, doesn't translate anything.

This is only shortcut to the google translate website.
It doesn't copy the word for translation as well to the website.
So what for?

unsatisfying - complicated-

这个插件使用起来蛮费劲的

Pessimo, in troppi siti dice che non posso selezionare più di 1100 caratteri quando anche seleziono solo una parola!
FA SCHIFO!