I use Firefox for everything (including web development) unless some application requires Chromium (only Microsoft's: Skype, Teams) and I'm required to use that application.
Firefox provides a good user experience on all web sites and applications and I need its developer tools, so a low end browser with limited features wouldn't do.
I don't use Chromium unless required to do so because I find its user interface choices confusing and not very convenient. Moreover, I find it a bit too inquisitive.
Furthermore, only Firefox and Chromium allow a normal use of web-based videoconferencing solutions (e.g. sound does not work on Safari and the previous generation of Edge). I privilege the use of these solutions over those requiring the installation of bloatware on my machine - which anyway is never provided for any BSD OS.
Simply stated, without Firefox, I would be unemployed.
