The recent Firefox 39.0.3 fixed a vulnerability where an ad from a Russian site without the user knowing, was able to bypass the same origin policy, and access the file system on a users machine, searching for certain file extensions and uploading them without the user knowing.
Would it be possible for secureaplus, (maybe via a browser plugin) to block access to the users file system, and be able to enable it on a per site basis. For instance, when you go to Facebook and click the browse button for the first time to upload a photo, secureaplus would appear and say "would you like to allow this website access to the hard drive".
Just a thought.
Thanks!