Just chiming in as a software engineer. My product DOES support Firefox, but there are some weird animation quirks that my team has been trying to solve, but with limited bandwidth and a full product backlog, it’s hard to justify spending too much time supporting a browser with such small global utilization. Especially since we’re using third party libraries like angular material, quirks on smaller browsers can be a nightmare to chase down
I swear I’ve been reading this rumor for 3+ years at this point