Megalith Posted May 24, 2018 Share Posted May 24, 2018 There are certain cookies that remain after using a browser's internal clean-up function and/or specialized extensions/add-ons. Why is it that only CCleaner is able to uncover these and delete them? Link to comment Share on other sites More sharing options...
Moderators Nergal Posted May 24, 2018 Moderators Share Posted May 24, 2018 If you click the cookie, in the cookies on this pc column of the cookies option, there should be an icon at the bottom of ccleaner. That'll say where the cookie is stored. ADVICE FOR USING CCleaner'S REGISTRY INTEGRITY SECTION DON'T JUST CLEAN EVERYTHING THAT'S CHECKED OFF. Do your Registry Cleaning in small bits (at the very least Check-mark by Check-mark) ALWAYS BACKUP THE ENTRY, YOU NEVER KNOW WHAT YOU'LL BREAK IF YOU DON'T. Support at https://support.ccleaner.com/s/?language=en_US Pro users file a PRIORITY SUPPORT via email support@ccleaner.com Link to comment Share on other sites More sharing options...
Megalith Posted May 25, 2018 Author Share Posted May 25, 2018 My concern isn't what browser the cookies belong to; that is obvious. The question I had was why only CCleaner can detect and delete these "special" cookies. The browsers are oblivious to the fact that they even exist. Link to comment Share on other sites More sharing options...
Moderators Nergal Posted May 25, 2018 Moderators Share Posted May 25, 2018 i was getting at maybe they're flash cookies, but none-the-less I know local storage is covered under cookies for microsoft browsers, could they be those? ADVICE FOR USING CCleaner'S REGISTRY INTEGRITY SECTION DON'T JUST CLEAN EVERYTHING THAT'S CHECKED OFF. Do your Registry Cleaning in small bits (at the very least Check-mark by Check-mark) ALWAYS BACKUP THE ENTRY, YOU NEVER KNOW WHAT YOU'LL BREAK IF YOU DON'T. Support at https://support.ccleaner.com/s/?language=en_US Pro users file a PRIORITY SUPPORT via email support@ccleaner.com Link to comment Share on other sites More sharing options...
Moderators Andavari Posted May 26, 2018 Moderators Share Posted May 26, 2018 That's been a mystery for years that I've noticed on my own system a couple of times, and I was able to back then confirm that only CCleaner was able to see the cookie as no other 3rd party cleaning tool would list it. It can happen on very rare occasions, and then the cookie will just disappear all on its own. Link to comment Share on other sites More sharing options...
Noesis Posted May 26, 2018 Share Posted May 26, 2018 One thing I've noticed with some of these is they're occasionally used/created by add-on's which use them to store custom settings. This naturally doesn't account for all of them and only a few add-ons seem to do it this way, (it probably depends on the browser used too, I've only noticed this scenario with Firefox). Link to comment Share on other sites More sharing options...
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