Ask CCleaner support about that. We recommend that Firefox users don't use external programs like that to do "housekeeping", but rather they use the features that are built into Firefox, along with Firefox add-ons as necessary to "protect" data the user doesn't want cleared.

https://addons.mozilla.org/en-US/firefox/search/?q=cookies&cat=all&x=0&y=0

Let all cookies expire when you close Firefox.

• Tools > Options > Privacy > Cookies: "Keep until": "I close Firefox"

Make an Allow exception for the ones that you want to keep.

• Tools > Options > Privacy > Cookies: "Exceptions"

You can inspect and modify the permissions for the domain in the current tab in "Tools > Page Info > Permissions"

Make sure that you do not use Delete browsing, search and download history on Firefox to clear the "Cookies" and the "Site Preferences" (Site Preferences includes the cookie exceptions)

Clearing cookies will remove all specified (selected) cookies including cookies that have an allow exception.

See also:

• https://support.mozilla.com/kb/Cookies
• https://support.mozilla.com/kb/Enabling+and+disabling+cookies

Thanks for your help but prefer to stay with ccleaner. Easier to manage and offers proper secure deletion. Regards

Thanks for your help but prefer to stay with ccleaner. Easier to manage and offers proper secure deletion. Regards

I agree with the person asking the question. Someone should do an add in that actually addresses all the various places that controls are (shell) and allow the user to lock in certain things that are protected. One cannot expect that a user will not use something like ccleaner. I use it also and it is a good easy program. Also use Regvac, have been for years. One of the best. But, the rule with all operating systems and cleaners is that you cannot rely on just one. So, to manage Firefox and not use these other options is not realistic.