I just so happened to see such a Firefox extension[1] announced[2] on planet.mozilla.org the other day, though it might be a bit more manual than you are envisi

I just so happened to see such a Firefox extension[1] announced[2] on planet.mozilla.org the other day, though it might be a bit more manual than you are envisioning, and I haven't personally tried it out, yet. [1] https://addons.mozilla.org/en-US/firefox/addon/priv8/ https://addons.mozilla.org/en-US/firefox/addon/priv8/ [2] http://143th.net/post/105342885096 http://143th.net/post/105342885096