Cookie Settings Are Not Being Saved. Since around the 22nd of August 2014 my cookie settings are not being saved; after a browser restart a 'do not accept cookies' setting is always changed to 'Accept cookies from sites' and 'Accept third-parties cookies: Never'. This is the only preference setting that is not being saved, and prior to the 22nd of August 2014 (or thereabouts) my cookie settings were being saved. Around this date I selected an option in the program Spybot-SD 2.4 ( http://www.safer-networking.org/mirrors/ ) for 'Third party cookies to never be allowed', this may be what's changing my settings, but maybe it's something else. There is no option in Spybot to reverse the selection. I contacted Spybot but several suggestions and changes on my system later the issue remains, and Spybot has given up. I do not have any of the programs installed that are known to force Firefox to use certain settings, as listed at https://support.mozilla.org/en-US/kb/how-to-fix-preferences-wont-save . Thus far I have: - on URL about:config , changed the network.cookie.cookieBehavior value to 2, - deleted all the lines in the user.js file, - uninstalled Spybot completely, but none of these actions have resolved the issue. I do not wish to Reset or Reinstall Firefox unless this is the last option. Please advise whether there is another option to fix this issue.