I don't use the translator in Firefox either,
But at least Google's online translator can
handle it quite well when different languages appear together.
https://translate.google.de
and
https://www-delphipraxis-net.transla...pp#post1534086
Many years ago, the Android app was able to find and translate texts in photos and images.
I would have guessed that the translator could do something like that in their own browser.
