lightspeed.ff per NullVoxPopuli

Press f to quickly jump to an interactive item on the page.
Solving the keyboard accessibility problems the browsers won't solve for us 🙃

lightspeed.ff is like the original vimium browser extension, but nearly all of the features have been stripped away to focus solely on navigating and interacting with a page's interactables.

This is not without a cost though! Reduced permissions means reduced functionality, so if you're after a very rich vim-like experience in your browser, you may want to stick with the original vimium -- it'll also have more active development.

Vimium-lite, on the other hand is focused on a very specific use case: in page navigation, where tabbing is insufficient.