Parts of Firefox are already written in Rust: https://wiki.mozilla.org/Oxidation https://wiki.mozilla.org/Oxidation they are continuing the work to replace th

Parts of Firefox are already written in Rust: https://wiki.mozilla.org/Oxidation https://wiki.mozilla.org/Oxidation they are continuing the work to replace the least performant/secure components in Rust when it's easily possible to switch them out