>Otherwise firefox is a slower, less secure browser
I'd like to see citations on that - AFAIK (my opinion is as baseless as yours) FF is plenty fast on desktop, and there is nothing inherently less secure about it than Chrome.
I do use Vivaldi (based on Chromium) on Android, but I consider Firefox Mobile and Desktop to be separate products.
Empirically, Firefox falls more easily than Chrome at Pwn2Own, and the exploit chains don't need to be very long.
Good news is, there is research that finds the Rust components of Firefox have much less memory safety bugs. Bad news, moco is not investing in Rust very much at all, anymore.
On perf metrics (artificial and specific websites) firefox is consistently slower than chrome and safari. It's improved a lot and on a good desktop, it's probably 'good enough', why would I not choose the faster one when I'm starting a new project when all other things being are equal?
I'd like to see citations on that - AFAIK (my opinion is as baseless as yours) FF is plenty fast on desktop, and there is nothing inherently less secure about it than Chrome.
I do use Vivaldi (based on Chromium) on Android, but I consider Firefox Mobile and Desktop to be separate products.