This is the addon i use the most (if you don't count ad blocker which I "use" all the time), and in general it has worked very well, but the last few months it has started behaving weird, for example i sometimes have to open a google translate tab from the current tab before it starts working, but not every time. Also any text containing emojis won't work at all. But still it fills a great role for me and i use it almost all the time on chinese websites since i'm still learning chinese have a lot to learn.