This add-on translates things OK, but it is useless with it's text to speech, it will only read the first few sentences of something and then stop.

6-1-22: may have infected mymachine with hijack to it's site. Problems with website coming up on browser with no input. Hijack this found malware hijacking this site in dns. After cleaning with hijack this problem went away. too intrusive with it's floating icon when you never asked for it to load. Does work MOSt of the time, but not always.
update 2-13-22:
less and less universally working. Does not work on many pages and does not give translation for cebuano or filipino. Better than the others I have tried though.Need to add translation of entire web page that works. Google does not work often.
started out good about 4 mos ago, now getting flaky. Icon appears without input. some pages cannot send to translation or does not work when translate page is activated. Still pretty good though but not as convenient as I first thought. Still having to use an outside translator, particularily for webpage translations.

It resets nearly every day the Settings & Languages (sometimes even at the moment when I use it), thats extremly anoying

Excellent extension but some problems in translatiing thai to english