Dialog to allow user to log in to third parties

Creates the ability to have a dialog pop up when a user wants to log in to a third party to interact: e.g. disqus, youtube, instapaper, etc.
On Tue, Jul 08, 2014 at 09:08:21AM -0700, Yan Zhu wrote:

> Do you plan to eventually have this as an EFF-hosted list (similar to cookieblocklist.txt) so that this can be updated without an extension release?
> 
> It would be nice to modify the syntax of cookieblocklist.txt so this list could be incorporated into it.

Cookieblocklist.txt is in a format defined by ABP, so I don't think we
should modify it unless we find a way to stay ABP-compatible when doing
so.

But +1 on hosting it somewhere.

-- 
Peter Eckersley                            pde@eff.org
Technology Projects Director      Tel  +1 415 436 9333 x131
Electronic Frontier Foundation    Fax  +1 415 436 9993