Install form Chrome users (OS X): Right-clicker green 'Install' button; Select 'Save Link As' Leave the name as is; 155512.user.js Save to a save location in your docs somewhere. If you delete it you will have to get a new copy from here.
Open chrome. In the menu select Window/Extensions Now from your file explorer select and drag/drop 155512.user.js into the extensions page. Select 'Add' to use it.
That's it! You're done.