### 3rdparty
-Allow WebExtensions to configure policy. For more information, see [Adding policy support to your extension](https://extensionworkshop.com/documentation/enterprise/adding-policy-support-to-your-extension/).
+Allow WebExtensions to configure policy. For more information, see [Adding policy support to your extension](https://extensionworkshop.com/documentation/enterprise/enterprise-development/#how-to-add-policy).
For GPO and Intune, the extension developer should provide an ADMX file.
`Locked` prevents the user from changing cookie preferences.
-`Default` (Deprecated) determines whether cookies are accepted at all.
+`Default` determines whether cookies are accepted at all. (*Deprecated*. Use `Behavior` instead)
-`AcceptThirdParty` (Deprecated) determines how third-party cookies are handled.
+`AcceptThirdParty` determines how third-party cookies are handled. (*Deprecated*. Use `Behavior` instead)
-`ExpireAtSessionEnd` determines when cookies expire.
+`RejectTracker` only rejects cookies for trackers. (*Deprecated*. Use `Behavior` instead)
-`RejectTracker` (Deprecated) only rejects cookies for trackers.
+`ExpireAtSessionEnd` determines when cookies expire. (*Deprecated*. Use [`SanitizeOnShutdown`](#sanitizeonshutdown-selective) instead)
**Compatibility:** Firefox 60, Firefox ESR 60 (RejectTracker added in Firefox 63, AllowSession added in Firefox 79/78.1, Behavior added in Firefox 95/91.4)\
**CCK2 Equivalent:** N/A\