@de22920b This is available now, and being incorporated into Firefox proper.
https://www.mozilla.org/en-US/firefox/features/translate/ 

 @80f08b97 This is one of those things where being too big and involving too many people to begin with is the real obstacle. Lua has always been small enough that it only takes a few maintainers to agree to prioritize something and make it happen, without adding funding/humans. 

 @80f08b97 Game developers drove improvements in Lua GC strategies over the years!