Install Firefox in French on Fedora 30


I’ve just installed Fedora 30 and it seems that I cannot have Firefox in French. When I go to Preferences>Language and Appearance>Language, then clic on “Search for more languages…” in dropbox menu, I have no language in the list. If I click on the button “Select Language to add…” nothing happens.

Of course, my Fedora system is in French.

Please, help!

OK, I found the solution.
I went to Firefox addons and enable “Français Language Pack” then restart Firefox.
It’s allright now.