I see that for "French" it selects "Alain" as a voice in Chromium, but "Joe" in Firefox. However in Firefox I must first change the language, it then select another voice, and switching back to French, it switches properly to Alain then it works. It probably doesn't initialise properly the voice selector when loading the page in Firefox (if I don't change the language first, I can't select any voice, the selector isn't working).
I see that for "French" it selects "Alain" as a voice in Chromium, but "Joe" in Firefox. However in Firefox I must first change the language, it then select another voice, and switching back to French, it switches properly to Alain then it works. It probably doesn't initialise properly the voice selector when loading the page in Firefox (if I don't change the language first, I can't select any voice, the selector isn't working).
Same problem with accents as Chromium though :)