how do i block cookies and sites forever, without having to block them every time i restart my mac?

-> click '''Firefox''' button and click '''Options''' -> Privacy -> History section -> '''Firefox will: select "Use Custom Settings for History"''' -> REMOVE Checkmark from '''Permanent Private Browsing mode''' -> place Checkmarks on: 1) Remember my Browsing History 2) Remember Download History 3) Remember Search and Form History 4) Accept Cookies from sites -> click '''Exceptions...''' button and click '''Remove All''' button -> Now type the addresses of the websites on which you want to '''Block Cookies''' e.g. '''aspca.org''' , '''donate.aspca.org''' , etc. -> click '''Allow''' for each, One by One 4a) Accept Third-party Cookies -> '''Keep Until : select''' '''They Expire''' -> REMOVE CHECKMARK from CLEAR HISTORY WHEN FIREFOX CLOSES -> click OK on Options window -> Restart Firefox Check and tell if its working. You can also use these add-ons for Blocking purposes: -> Adblock Plus 1.3.9 - https://addons.mozilla.org/en-US/firefox/addon/adblock-plus/ * Subscribe to Filter lists ** http://adblockplus.org/en/subscriptions ** http://adblockplus.org/en/getting_started -> BlockSite 0.7.1.1 - https://addons.mozilla.org/en-US/firefox/addon/blocksite/ Also see this list of Blocking add-ons * https://addons.mozilla.org/en-US/firefox/search/?q=block&cat=all&x=0&y=0

Do not use [[Clear Recent History]] to clear the "Cookies" and the "Site Preferences" Clearing "Site Preferences" clears all exceptions for cookies, images, pop-up windows, software installation, and passwords.