I am a vim gremlin. I use qutebrowser, which is ultimately chromium-based, because I cannot find any reasonable way to do vim bindings for Firefox. Tridactyl, the most featureful and mature vim binding extension for Firefox, shits out if Firefox hasn't loaded a webpage.
Is there any Firefox fork that is keyboard driven like qutebrowser? I don't see how it could be accomplished without a fork or patchset, as the WebExtension API simply has too many restrictions for a proper input method.