I have no idea but when I mention Firefox my colleagues under 35 or so literally think I'm joking.
They've been consuming 15+ years of anti-Mozilla rants anytime it or Firefox are mentioned online.
It's how you get things like "Browser monocultures are an issue, so don't use Chrome (Blink), use Brave (Chromium (Blink)) instead!" said in earnest.
When Google stuffs AI into everything, people shrug. Can't expect anything else from big tech.
When Firefox does it, it sparks outrage across the internet, with entire forums filled with people vowing to leave Firefox forever and switching to something like Waterfor or Ilp/Zorp/Floop instead.
As a result, searching for experiences other people had with Firefox makes it sound like hell on earth, while people have little more to say about Chrome other than "Google gonna Google, but it's fast at least".