I just went through a long list of keyboard shortcuts for Firefox. One that I didn’t see that I would find useful is to press something like ⇧ Shift + ⌘ + C to copy the URL and then paste it into an email or message to send to someone. Does something like this exist?
You can configure Qutebrowser for that. In Qutebrowser the insert mode isn’t that intuitive as in bloated browsers, but you get used to it.
My Qutebrowser uses Vim keys for scrolling and browsing, but in insert mode I use Emacs keybinds. Best of both worlds (for me).