Description of the issue:
I changed the language of the browser for the French everything is fine except for the dictionary that underlines all the words in French; How can this issue be reproduced?
@Irixo welcome to the community. It took a while to figure out what was wrong, being am not a native french speaker and going by residual knowledge from my mum’s teachings, I was able to find the solution to the problem. Under languages remove all traces of english and it would be fixed. If you still want the english to remain, Under languages Add Francais the one without any country type and it would be fixed.
THANKS ! It was exactly that ! There is no “Utiliser le correcteur orthographique pour” with français (france) for me but with only “français” there is !