Surprised to see all the "install Firefox" comments. What year is this? Firefox hasn't been good for 2 decades.
This was exactly my point. I'm not young at all but I can't imagine being this averse to change. Material design is actually great from a user experience perspective. That feeling of immediate aversion to anything new is an indicator you have an inflexible mindset and it's not exactly healthy.
If Firefox hasn't been good for 2 decades, having come out in 2004, it means it's never been good, according to you - why? You a former IE fan? You do know that before they came out with Chrome (which is a forked Safari, itself a forked KHTML/Konqueror, which was itself a "lite" reimplementation of Mozilla's Gecko engine), Google couldn't get enough of Firefox...
Firefox was one of the best browsers available (along with Opera) up until version 3 - then they got stuck on feature creep, and took a lot of time getting Firefox 4 out, and it sucked. But right then they switched to a fast release model, and by Firefox 6/7, it was again very good. If you don't want to upgrade your UI constantly, they're the last to provide a "slow" release with Firefox ESR - maintained with only bug fixes for a year.
Firefox allows me to actually block ads. Chrome is trying to prevent that. Also, Privacy mode actually disables all trackers (Privacy mode can't access 'normal mode' cookies, cache, history, or storage) and saves nothing to disk - Chrome's incognito mode still allows Google to track me. So, no dice. Finally, I can store my passwords in the cloud in an encrypted manner without having to have it linked with my email account, Chrome won't allow that.
I do some web development sometimes - I do it on Firefox, then I cross-test on Chrome. While Firefox isn't bug-free, Chrome reminds me strongly of IE 6/7 - back when Microsoft didn't want to fix bugs 'to not break compatibility'. And it causes UI sluggishness when popping up context menus in Linux.
So, yeah - I don't like Chrome, nor Chromium, nor Opera, nor Edge - the UI may change, and I don't care about that much, but the engine itself simply sucks.