Useful Add-ons to make your daily surfing a bit more secure by encrypted browsing over https where possible and blocking ads/tracking.
Certificate viewer enhancements: PEM format view, file export, trust configuration
Better Protection. Did you know that web sites use Flash to track you with Flash based cookies?
Privacy Plus will add a simple checkbox in the [Clear Recent History] dialog that will allow you to delete these cookies (Flash LSO) anytime you like.