µMatrix
Open Source
uMatrix is a point-and-click matrix-based firewall, with many privacy-enhancing tools.
RequestPolicy
Open Source
RequestPolicy is a open source Firefox extension to control cross-site requests.
Better Pop Up Blocker is a browser extension for popup blocker.
Flashblock
Free
Flashblock is a content-filtering Firefox extension for Mozilla Firefox and SeaMonkey.
Kill Evil
Open Source
Prevent printing, selection spying, unwanted tabs, etc.
Compare NoScript with alternatives
Compare Flashblock and NoScript and decide which is most suitable for you.
Compare RequestPolicy and NoScript and decide which is most suitable for you.
Compare Better Pop Up Blocker and NoScript and decide which is most suitable for you.