Does anyone still use their software? Er, yes, actually; I do. Mozilla upset me a few years back: you can read about it here - Firefox is on a slippery slope The issue with using most other browsers is that the code base is very centralised, being so, as it is based on Chrome and, as you may guess, I'm for decentralisation. I also use Thunderbird as I've not found any other email client that's as good.