Thanks for the heads-up! I locally maintained Pentadactyl for my own browser until Mozilla banned unsigned addons (which ticked me off enough to write a Hiter parody[1]). That extension was also what got me into vim.

I'm still upset that they broke custom keyboard shortcuts for ... two years now? All the replacements will only remap keys after a tab's JS has loaded. I used to be able to just zoom through the tabs with shift-j and shift-k, but now it will randomly stop on pages that need to reload, which breaks the whole experience.

I've had Super NES games that offered key customizations, and had much less memory and money to work with. That's really disappointing.

[1] https://www.youtube.com/watch?v=taGARf8K5J8