I tried this recently because ideologically I agree. But the small issues build up and make me less productive.
For example, if you use a U2F key, you need an extension for that to work - and that extension doesn't work with FF 57. I honestly don't remember the last time something broke with Chrome.
Or smaller things, like the fact that I can't use the keyboard to manage bookmarks (in FF on macOS, backspace doesn't delete bookmarks).
But the worst is in FF, Ctrl+Shift+N isn't new incognito window, it's restore the previous window. Years of muscle memory don't go away overnight.
Chances are that extension is not yet ported to the WebExtensions API. It should probably be ported eventually, as precisely one of the benefits of WebExtensions is that it makes way more easy to port a Chrome extension to a Firefox one and viceversa.
Regarding the shortcuts, I feel you. There's an extension for that as well (Menu Wizard) but it has also not been ported.
I guess it's too soon yet.
I'm trailing Brave out at the moment and like it but plugins are important to me.
Firefox is an interesting choice but the Chrome plugin ecosystem seems much more complete for me than Firefox has today.
It'll be interesting to see what happens in the space. I was a Mozilla user, then Firefox and now Chrome user. I have no issue going to better platforms.
