title: Where are the Windows Registry locations of Google Chrome and Firefox when we set "block third party cookies" on browser?
body: <p>Where do Google Chrome and Firefox store there <strong>registry</strong> values when we set "<strong>block third party cookies</strong>" on browsers</p>
  
  <ol>
  <li><strong>Chrome</strong> (chrome://settings/content/cookies) and</li>
  <li><strong>Firefox</strong> (about:preferences#privacy)?</li>
  </ol>
  
  <p>I'm trying to handle for option "block third party cookies" on browser Chrome and Firefox by editing there corresponding values in registry.
  However, I cannot find the location of registry entry which handle for "block third party cookies"   </p>
  
  <p>I searched on the internet and I found some directions for this:</p>
  
  <ul>
  <li>For Chrome: [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome]</li>
  <li>For Firefox: [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Mozilla\lockedpref]</li>
  </ul>
  
  <p>But I cannot find these directories on my PC and another PC, I also reinstall Chrome and Firefox with the newest version.</p>
  
  <p>However, I can find and handle for the registry value of IE and Edge:</p>
  
  <ul>
  <li>For IE: [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3]</li>
  <li>For Edge: HKEY_CURRENT_USER\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.microsoftedge_8wekyb3d8bbwe\MicrosoftEdge\Main</li>
  </ul>
  
  <p>Could you please tell me where are the locations of them on Chrome and Firefox? </p>