自分は別にvimmerというわけではありませんが、いちいちマウスに手を伸ばさなくてもタブ移動などができてとても便利です。vimとか何もわからないよ～という人（自分なんですが）でも使ってみるといいと思います!
使いこなせれば間違いなく高速にブラウジングできるようになります。

this extension is great but please fix the page yanking

Great addon! loved in Chrome, and now in Firefox.

Only thing that bothers me is the search focus problem, hope it will be solved soon

Please fix URL yank.

Vimium-FF reads PDFs fluidly from the keyboard. This wins me for Firefox.

Love VIM so this is a must have extentions

For firefox >=57, try this! A big thank you to author.

Fantastic, thank you!

excellent experience in chrome, but there's problem I met in firefox, when I was using vimium in websites which open each selected result in a new tab, the annoying warning that "firefox prevented this site from a pop-up window" was always there, and if I disabled the pop-up blocker from setting, with once vimium shortcut typed, the same two tabs were opened. I think it's probably a bug with vimium, because if I click the link directly instead of using vimium, all these problems above disappear.

Does anyone else have problems on this site?

http://text-processing.com/demo/stem/

In may case vimius slows down the browser so much that a warning is issued by mozilla firefox, telling me that a script in vimium is slowing down the browser.

Speeds up browsing a lot.

Really liked:
- insert mode (map i) that really works
- focusing input (gi) and using tab to switch between many of them
- toggle between previous tab (default ^, mapped it to q)
- vomnibar, especially tab search (T)
and of course the basic vim key bindings you expect from any vim extension.

Not being able to use Vimium-FF in Firefox native tabs bothers me a bit, sometimes Vimium-FF stops working on some pages, and the search (/) not highlighting results makes it pretty useless compared to the native Firefox search, but I've understood that they're limitations of the WebExtensions API rather than the fault of the extension developers. Overall very good, and that's why I give you 5/5 stars.

I like this extension, it is very useful. If you are familiar with vim, I strongly recommend starting using it.

Love the plugin. It would be awesome if this can integrate with firefox containers. That will make handling container tabs easy to handle.

A must have for optimal efficiency

Finally, best extension for mouseless / keyboard only surfing ported to FF

Works as expected, and keybindings are completely customizable, so you could make this into emacsium if you so desire. Also allows for partial or complete blacklisting of sites, so you can make sure vimium doesn't get in the way on sites that have their own shortcuts.

It could esc facebook message windows via esc key likes native?

It's better because it fits browser and does not force you to use identical vim keybindings.