This extension NO LONGER WORKS
I'm developing new versions in private... if you're curious why, read my blogpost about it. If you want to fork and continue working on it, make sure you start your work on commit 5da4bd1b6206b5f6d303bae15f8c6f2e4bf1c3ff (since the last commit disables a bunch of things to explain people that the extension no longer works).
Check all the features on its website :)
Build from source
You need to have nodejs and npm installed. Once you do, just cloning the repo and running
npm install && npm run build