I use Vimium C for navigating and it’s great. However I always find myself wishing for vim movement controls, modes, and other vim features when typing text in input fields (such as the one I’m typing in right now). I looked it up and apparently Pentadactyl and Vimperator used to provide this functionality but they’ve been discontinued and are not available on latest Firefox.
I assume the answer is “it doesn’t exist” but if it does, I would love to install it.
There is a neovim plugin with a Firefox companion extension that basically puts your neovim inside the textbox on the webpage. It’s pretty crazy, and works with most text input fields.
https://github.com/glacambre/firenvim