12-12-2020, 09:05 PM
You can use the page scanner addon and just put some common words in each language. Its not full proof as you may find those words on pages of a different language also you may find that some sites are in more then 1 language. This would especially be problematic on pages where there is user generated content.
Also the page scanner will tell you the first match it finds.
Also the page scanner will tell you the first match it finds.