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Next month's Firefox 48 is looking Rusty – and that's a very good thing
For one thing, Rust's toolchain is extremely strict and refuses to build source that potentially suffers from data races, buffer overflows and so on. Therefore, it should be a lot harder to attack the Rust-hardened sections of Firefox because there will be fewer bugs present.
The first use of Rust will be in the browser's media parsers, where the security strengths of the language are best put to use. Mozilla believes the memory safety features of Rust will do the most good when handling video and audio embedded in webpages – media files are a favored ammunition in drive-by malware attacks.
