General Discussion
In reply to the discussion: Firefox browser to move ahead with ‘Do Not Track’ option [View all]enlightenment
(8,830 posts)Basically, it allows you to control precisely what kind of Java script, Flash, etc is allowed on each site you visit. It can be a pain-in-the-arse unless you really know what different things do (I don't, so I occasionally find myself cursing at it), but it does prevent a lot of crap from being permanently loaded. It also tells you if you are being redirected in a malicious way.
If you trust a site, you can allow permanent access of the background stuff - or, if you really need to see something it is preventing, you can allow temporary access that ends when you close the window in your browser (or close the browser). It's a little cumbersome, but I think it has saved me from myself quite a few times.
Here's the information page: http://noscript.net/