CCleaner partially disables SpywareBlaster protection of Firefox, redux in CCleaner Bug Reporting Posted 2 hours ago Again - CCleaner does not 'deal with' cookies other than deleting them if/when you tell it to. However I think I may have found what could be causing your issue, and you are not the only one seeing this behaviour. Wilders Security host the 'official' BrightFort/Spywareblaster forum and this thread there is about unprotected cookies suddenly appearing in Spywareblaster: https://www.wilderssecurity.com/threads/persistent-new-unprotected-cookies-ad-in-firefox-browser.429707/ A reponse there by the BrightFort moderator on 17 June indicates that it seems to be a bug in Firefox itself that is causing the issue, but there has been no update from them since. Quote There appears to be a bug in the latest version of Firefox. We're investigating to try to determine whether it's just a UI bug, or it impacts behavior, but regardless - it seems fairly easy to get Firefox into a weird state where using its own UI to edit the Cookie Permissions doesn't load any changes you make after a restart of the browser. Whether the Firefox bug is the only issue impacting what you're seeing, or whether there's also a conflict with another tool (like Spybot) incorrectly messing with the same files (or trying to "clean" profile data), is something that remains to be seen. So we'll do some more digging on this. If it's something we can work around in SB we'll of course do that, if not we'll reach out to Firefox with a bug report and a proposed patch.