I'm surprised that Firefox Translate includes Bulgarian but not Russian in its list of available languages. It seems to me that the latter language is far more important.
It had "Russian (beta)" in the add-on before they merged that into firefox itself (version 118). It wasn't the best translation but I found it very useful.
Now it's gone from translate and I can't use the add-on.
@RTech I didn't know about it, but just because in this period there's tension, doesn't mean you have to leave Russian untranslated. It's just a bad UX decision
I do see from your post that there's a Russian forum (as well as the French forum of your link—pity that my French doesn't go beyond accepting the site's cookies!) But I don't know if this is related to interactive translation or not.
@Alessandro_, @drjlevi6 yes, of course you're right. I guess i'm just feeling really insecure about it.
There's great news! The new languages are: Estonian, Finnish, Icelandic, Catalan, Norwegian (Bokmel), Norwegian (Nynorsk), Persian, Russian, Czech, Ukrainian and Hungarian.