Cookies created by websites that match a URL pattern you define are deleted when the session ends (when the window closes).
Cookies created by websites that don't match the pattern are controlled by the 'DefaultCookiesSetting' (Configure cookies) policy (if set) or by the user's personal configuration. This is also the default behavior if you don't configure this policy.
If Microsoft Edge is running in background mode, the session might not close when the last window is closed, meaning the cookies won't be cleared when the window closes. See the 'BackgroundModeEnabled' (Continue running background apps after Microsoft Edge closes) policy for information about configuring what happens when Microsoft Edge runs in background mode.
You can also use the 'CookiesAllowedForUrls' (Allow cookies on specific sites) and 'CookiesBlockedForUrls' (Block cookies on specific sites) policies to control which websites can create cookies.
Note there cannot be conflicting URL patterns set between these three policies:
If you set the 'RestoreOnStartup' (Action to take on startup) policy to restore URLs from previous sessions, this policy is ignored, and cookies are stored permanently for those sites.
|Registry Hive||HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER|