Browsers are _user agents_. I want my user agent to serve me by being as frictionless as possible when I use it. I simply can't accept that what Chrome/Firefox/Edge/Safari/Opera have provided as the standard web browsing experience for the last two decades is a global maximum. We use the web in very different ways than we did a generation ago and yet Firefox 136 looks impressively similar to both Firefox 36 and Firefox 3.6. Take the gradients away from Chrome 1.0 and you could convince me a screenshot of it was their next version. If the browser is a tool, it's astounding that the tool has hardly evolved _at all_.
I miss the days when Opera did all sorts of weird and wacky shit. Opera 9 was a magical time, and brought us things like tabs and per-tab private browsing and a proper download manager and real developer tools. Firefox should be that, but they're too scared to actually do anything that isn't going to be a totally safe business decision.