I say it every time that people say "Firefox is great now!". Just look at the Bugzilla, and tell me that among the thousands of reports (many of which have gone untriaged for around a decade!) there aren't at least a handful of serious issues like this.

One, among many, of the reasons I use Chromium is that I see reports taken absolutely seriously, especially any report with any potential security outcome. Even seemingly minor issues or feature requests I've filed with Chromium get thoughtful and prompt responses.

I wish Mozilla the best, but the quality of Firefox is low in a way that I notice every time I use it; I'd appreciate it if they go back to basics and actually try to address at least the known issues with the software.