So far, Chrome has better sandboxing support on most platforms (especially Linux), though Chrome's catching up quickly.
I'm generally optimistic about Rust code having fewer exploitable defects, although it's a reasonable argument to suggest that the previous C++ parts had a lot more public scrutiny.
Also, for me personally: I use a lot of different profiles and using multiple Firefox profiles simultaneously is a mess. The only UX that still works is about:profiles (all of the profile switcher extensions broke since the move to WebExtensions) and I've had Firefox beachball (hang -- I'm on macOS) on me twice while doing that.
Don't get me wrong! I love Firefox and I'm really excited about this change.
I'm generally optimistic about Rust code having fewer exploitable defects, although it's a reasonable argument to suggest that the previous C++ parts had a lot more public scrutiny.
Also, for me personally: I use a lot of different profiles and using multiple Firefox profiles simultaneously is a mess. The only UX that still works is about:profiles (all of the profile switcher extensions broke since the move to WebExtensions) and I've had Firefox beachball (hang -- I'm on macOS) on me twice while doing that.
Don't get me wrong! I love Firefox and I'm really excited about this change.