NoScript 1.0.2
Extra protection for your Firefox: NoScript allows JavaScript execution only for trusted domains of your choice (e.g. your home-banking web site). This whitelist based pre-emptive script blocking approach prevents exploitation of security vulnerabilities (known and even unknown!) with no loss of functionality... Experts will agree: Firefox is really safer with NoScript ;-)
https://addons.mozilla.org/extensions/morei...ication=firefox
I actually found this extension to be really good and real easy to use. It also blocks java script ads that other popup blockers can't (Main reason I got it).