Cocoa Cookies is a free Cocoa-based utility for Mac OS X Tiger that allows you to search (with regex) and delete (with undo) HTTP cookies stored in the shared Cocoa cookie storage used by Safari, Dashboard, NetNewsWire, Sherlock, Shiira, and others.

Note that you may still delete 'protected' cookies via Safari, NNW, Shiira or any other cocoa app that uses the shared cocoa cookie storage. So you should always search, manage and delete cookies via Cocoa Cookies in order to take advantage of this 'protection'. This shouldn't be much of a problem, as Cocoa Cookies (with regex search, batch delete and undo capabilities) provides a much more full-featured UI from which to manage your cookies.

This cookie protection does not extend the life of a cookie beyond its specified duration. Protected cookies will still be lost when they pass their expire date. (but this is probably what you would prefer anyway)

Requirements:
OS X 10.4
Universal Binary