| **[`InstallAddonsPermission`](#installaddonspermission)** | Configure the default extension install policy as well as origins for extension installs are allowed.
| **[`LegacyProfiles`](#legacyprofiles)** | Disable the feature enforcing a separate profile for each installation.
| **[`LocalFileLinks`](#localfilelinks)** | Enable linking to local files by origin.
-| **[`MasterPassword`](#masterpassword)** | Require or prevent using a master password.
| **[`NetworkPrediction`](#networkprediction)** | Enable or disable network prediction (DNS prefetching).
| **[`NewTabPage`](#newtabpage)** | Enable or disable the New Tab page.
| **[`NoDefaultBookmarks`](#nodefaultbookmarks)** | Disable the creation of default bookmarks.
Trust certificates that have been added to the operating system certificate store by a user or administrator.
+Note: This policy only works on Windows and macOS. For Linux discussion, see [bug 1600509](https://bugzilla.mozilla.org/show_bug.cgi?id=1600509).
+
See https://support.mozilla.org/kb/setting-certificate-authorities-firefox for more detail.
**Compatibility:** Firefox 60, Firefox ESR 60 (macOS support in Firefox 63, Firefox ESR 68)\
}
}
```
-### MasterPassword
-Require or prevent using a master password.
-
-If this value is true, a master password is required. If this values is false, it works the same as `DisableMasterPasswordCreation` and removes the master password functionality.
-
-**Compatibility:** Firefox 78, Firefox ESR 78\
-**CCK2 Equivalent:** `noMasterPassword`\
-**Preferences Affected:** N/A
-
-#### Windows (GPO)
-```
-Software\Policies\Mozilla\Firefox\MasterPassword = 0x1 | 0x0
-```
-#### Windows (Intune)
-OMA-URI:
-```
-./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/MasterPassword
-```
-Value (string):
-```
-<enabled/> or <disabled/>
-```
-#### macOS
-```
-<dict>
- <key>MasterPassword</key>
- <true/> | <false/>
-</dict>
-```
-#### policies.json
-```
-{
- "policies": {
- "MasterPassword": true | false
- }
-}
-```
### NetworkPrediction
Enable or disable network prediction (DNS prefetching).