Select “Tell web sites I do not want to be tracked” – this will tell advertisers your tracking preference
Below that, you can decide which cookies to accept, and for how long
Add exceptions to cookie-blocked sites if needed
You can also block cookies from third party advertisers by subscribing to “block” lists. Select “Tools” again, and then “Add-ons”
Mozilla Firefox offers many Add-ons to protect user privacy. Here are some of the most popular Add-ons.• Ghostery blocks the invisible tracking cookies and plug-ins on many web sites, shows it all to you, and then gives you the choice whether you want to block them one-by-one, or all together.• Adblock Plus stops social networking sites from transmitting data about you after you leave those sites, even if the page you visit has a social plugin on it.• Do Not Track Plus is the Do Not Track app that sends a request to websites not to track you, with a “plus” of also stopping third-party data exchanges. So, when you visit a site with Facebook, Twitter and Google+ buttons on it, your browser will tell the network that youre on a site with those buttons, and no information will be sent until you choose to click one.• Priv3 is a new extension that will protect you from third-party cookies set by Facebook, Twitter, Google+, and LinkedIn. Like Do Not Track Plus, it doesnt remove elements from a page—it simply makes them inactive until you interact with them.
Let’s use Adblock Plus for this example. In the “Get Add-ons” tab, type “Adblock Plus” in the search bar, and hit Enter.
Click “Install” Adblock Plus.The tool will be installed once Firefox restarts.