Is is not something I have heard of and I am not even finding information when is try a web search for "Self Destruct Cookies" App

Making a guess that it could be some sort of malware
_{( update it is just a standard add-on )} or unwanted software I suggest looking at:

• Troubleshoot Firefox issues caused by malware
• Disable or remove Add-ons

If you can explain the problem in a bit more detail I should be able to provide a better suggested course of actions Exactly what have you installed and now need to remove, and what problems is this causing ?

This item is included in the Firefox add-ons website. The first section is "Featured Extensions" and the second is "Up and Coming Extensions". The fist item in that section is what I am referring to.

"Up & Coming Extensions.........." •

Self-Destructing Cookies Privacy & Security"

This is the item that I installed and am now desperate uninstal.

If you can help I shall be in your debt!!

OK Thanks for the clarification, got it

• https://addons.mozilla.org/en-US/firefox/
  • https://addons.mozilla.org/en-US/firefox/addon/self-destructing-cookies/

As it is an officially hosted add-on it should easily uninstall.
Just go to your add-ons manager, one method of doing that is to key into the address bar about:addons look for the add-on under | extensions |and use the [remove] option, or if you just wish to stop using it at the moment take the [disable] option.

• see Disable or remove Add-ons

Please post back with how you get on.

I followed your instrucuins to the letter and the job was done!!! I am forever in your debt- thanks a million!!!! David

Glad to have helped,thanks for posting back.

Problem Solved - thanks