On PCs Chrome has ~70% market share with Firefox being a distant second with <8%. On mobile Firefox's market share is a negligible 0.7% compared to Google's 64%. If Google wants Firefox to stick around it's certainly not because it would give them any plausible defense in an antitrust lawsuit.
I'm not sure why they'd benefit from that, but it's interesting Microsoft has been going hard on evangelising Rust.
For once I'm taking a not-conspiratorial line and think it's just all concerned parties wanting fewer bugs in software. But it does lead to an interesting line of thought for Mozilla...
>but it's interesting Microsoft has been going hard on evangelising Rust.
Microsoft put a report out a while ago that memory safety issues account for over 70% of security bugs in microsoft products[1] which they attribute to unsafe languages in the codebase so it seems natural that they're interested in Rust.