Cookie Cleaner (Cookie Eraser)

"Cookie Cleaner" is the easiest way to clear your browser stored cookies for a specified period. You can define a custom period on the options page. Also, you can define the area (zone) in which you want the data to be cleared.

For a more comprehensive cleaner try my eCleaner
https://addons.opera.com/extensions/details/ecleaner-forget-button/

Using this extension it is possible to wipe cookies of three different zones:
1. Normal websites,
2. Protected websites (not supported in Firefox yet),
3. Extension zone (not supported in Firefox yet)

Definitions:
-> Extensions zone: Extensions and packaged applications a user has installed
-> Protected websites zone: Websites that have been installed as hosted applications

For bug reports please visit:
https://github.com/andy-portmen/ecleaner

For FAQs please visit:
https://add0n.com/ecleaner.html?from=cookie-cleaner