Incredibly helpful! It's been a huge time saver for me.

best extension ever i love this extension a lot, it's super cool

Man, as a amateur vim user, this makes firefox awesome and fast to use. Particularly love the edit in an external editor feature.

Since pentadactyl is gone there is not such replacement. Keep the good work, thanks for the frequent updates!

great!

Great addon if you love controlling everything with only your keyboard. This is one of my must-have addons for Firefox.

the only reason im still using Firefox

I can't live without it.