Indeed. As a very very old timer from the phoenix days, I've tried to switch to chrome/chromium -- I love the speed and the integrated translation system for pages -- but all the configs and settings and habits I've piled up on firefox over the years are not available, or are only extensions that leave a lot to be desired.
Although for normal users, I'm a bit torn on which is better.
Pheonix? I remember when it was still part of the Mozilla browser, back when the logo was still a fire breathing version of Godzilla. Stragely every new major version made it more and more cartoony.
Firefox is still better, especially on mobile, most people I know can't afford an unlimited data plan, Yeah, I live in the US in a not a major city, so telling them to switch to Firefox with adblocking saves them precious megabytes that they can use for useful tasks without having to pay out for overages as often.
This often also leads to them using it on their desktop system as well.