Keybindings work on recent releases (which you'll have to install from source at (https://github.com/lusakasa/saka-key) until they are approved.

A fix for the scrolling issue is in the works. It works except:
* in the popup
* on pages that provide their own key event listeners

You're right about the version number. Some firefox-specific bugs made it unreliable, but I didn't want to version the firefox and chrome versions separately.

Thanks for the feedback!