In a perfect world the UI would be customizable to the extent that I feel at home and don’t need to unlearn and relearn patterns ingrained in my brain. For me those patterns are very relevant as I work in the field and every time the tools force me to spend more time working around them instead of with them, lead to loss of efficiency.
Extension support exists in some Chrome based browsers, too. Kiwi Browser also comes to mind.
Remote debugging is also important to me, and even though you can install Chrome dev tools in Firefox, it doesn’t work with remote debugging.
It’s been noted that the apps by the company do send each and every keystroke back to china, though.
Who’s to say how poisoned the data in reality is.