https://www.openhub.net/p/firefox/analyses/latest/languages_summary https://www.openhub.net/p/firefox/analyses/latest/languages_... The vast, vast majority of

https://www.openhub.net/p/firefox/analyses/latest/languages_summary https://www.openhub.net/p/firefox/analyses/latest/languages_... The vast, vast majority of that C++ is legacy crud that gets #ifdef'ed out -- Mozilla development style seems to be to never remove code, ever; just #ifdef it out. Also there's a ton of boilerplate in there due to their homegrown IDL.