With the proliferation of the plugins 'social', which are increasingly present in most pages, private browsing was becoming a utopia.

For example, for the simple fact of having an open session ( or ) On Facebook, every time we go on a website that has a button innocent "Like", can be identified. This does not mean you do, but the possibility is there. The site we visited did not know (or do not have to know who we are), but the social plugin if you know who we are and who we're visiting website as it is our social network logon requests and the page show the plugin.

If you use Chrome, Firefox or Safari to browse and we would like to prevent this from happening we are lucky:

Founded by former Google employees, https://disconnect.me/ is an extension for Chrome, Firefox and Safari as its creators blocking requests to the servers Google, Facebook, Twitter, Yahoo, etc. we can avoid 'follow' on our navigation outside these sites. We have the ability to disable the lock for the page you are visiting at the time, if we want to make a likes, which remember in future visits.

As soon as we have noticed is that if a faster initial response to the plugin pages in lock mode, because they just requests, load and execute javascript on these pages.