https://hacks.mozilla.org/2016/07/sh...st-in-firefox/
Ralph Giles and Matthew Gregan built Mozilla’s first Rust media parser.
https://github.com/mozilla/mp4parse-rust
It is the first component integrated in Firefox, written in Rust and shipped to all desktop platforms. Firefox 48 is a culmination of a long journey for Rust.
It means exerting pressure on Gnu/Linux distros and other FOSS operating systems shipping Firefox browser to Tier-1 support for Rust's toolchain.