+The syntax of this policy is exactly the same as the [Chrome ManagedBookmarks policy](https://cloud.google.com/docs/chrome-enterprise/policies/?policy=ManagedBookmarks). The schema is:
+```
+{
+ "items": {
+ "id": "BookmarkType",
+ "properties": {
+ "children": {
+ "items": {
+ "$ref": "BookmarkType"
+ },
+ "type": "array"
+ },
+ "name": {
+ "type": "string"
+ },
+ "toplevel_name": {
+ "type": "string"
+ },
+ "url": {
+ "type": "string"
+ }
+ },
+ "type": "object"
+ },
+ "type": "array"
+}
+```
+**Compatibility:** Firefox 83, Firefox ESR 78.5\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+Software\Policies\Mozilla\Firefox\ManagedBookmarks (REG_MULTI_SZ) =
+```
+[
+ {
+ "toplevel_name": "My managed bookmarks folder"
+ },
+ {
+ "url": "example.com",
+ "name": "Example"
+ },
+ {
+ "name": "Mozilla links",
+ "children": [
+ {
+ "url": "https://mozilla.org",
+ "name": "Mozilla.org"
+ },
+ {
+ "url": "https://support.mozilla.org/",
+ "name": "SUMO"
+ }
+ ]
+ }
+]
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/ManagedBookmarks
+```
+Value (string):
+```
+<enabled/>
+<data id="JSON" value='
+[
+ {
+ "toplevel_name": "My managed bookmarks folder"
+ },
+ {
+ "url": "example.com",
+ "name": "Example"
+ },
+ {
+ "name": "Mozilla links",
+ "children": [
+ {
+ "url": "https://mozilla.org",
+ "name": "Mozilla.org"
+ },
+ {
+ "url": "https://support.mozilla.org/",
+ "name": "SUMO"
+ }
+ ]
+ }
+]'/>
+```
+#### macOS
+```
+<dict>
+ <key>ManagedBookmarks</key>
+ <array>
+ <dict>
+ <key>toplevel_name</key>
+ <string>My managed bookmarks folder</string>
+ <dict>
+ <key>url</key>
+ <string>example.com</string>
+ <key>name</key>
+ <string>Example</string>
+ </dict>
+ <dict>
+ <key>name</key>
+ <string>Mozilla links</string>
+ <key>children</key>
+ <array>
+ <dict>
+ <key>url</key>
+ <string>https://mozilla.org</string>
+ <key>name</key>
+ <string>Mozilla</string>
+ </dict>
+ <dict>
+ <key>url</key>
+ <string>https://support.mozilla.org/</string>
+ <key>name</key>
+ <string>SUMO</string>
+ </dict>
+ </array>
+ </dict>
+ </array>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "ManagedBookmarks": [
+ {
+ "toplevel_name": "My managed bookmarks folder"
+ },
+ {
+ "url": "example.com",
+ "name": "Example"
+ },
+ {
+ "name": "Mozilla links",
+ "children": [
+ {
+ "url": "https://mozilla.org",
+ "name": "Mozilla.org"
+ },
+ {
+ "url": "https://support.mozilla.org/",
+ "name": "SUMO"
+ }
+ ]
+ }
+ ]
+ }
+}
+```
+### ManualAppUpdateOnly
+
+Switch to manual updates only.
+
+If this policy is enabled:
+ 1. The user will never be prompted to install updates
+ 2. Firefox will not check for updates in the background, though it will check automatically when an update UI is displayed (such as the one in the About dialog). This check will be used to show "Update to version X" in the UI, but will not automatically download the update or prompt the user to update in any other way.
+ 3. The update UI will work as expected, unlike when using DisableAppUpdate.
+
+This policy is primarily intended for advanced end users, not for enterprises.
+
+**Compatibility:** Firefox 87\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** N/A
+
+#### policies.json
+```
+{
+ "policies": {
+ "ManualAppUpdateOnly": true | false
+ }
+}
+```
+### NetworkPrediction
+Enable or disable network prediction (DNS prefetching).
+
+**Compatibility:** Firefox 67, Firefox ESR 60.7\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `network.dns.disablePrefetch`, `network.dns.disablePrefetchFromHTTPS`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\NetworkPrediction = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/NetworkPrediction
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>NetworkPrediction</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "NetworkPrediction": true | false
+}
+```
+### NewTabPage
+Enable or disable the New Tab page.
+
+**Compatibility:** Firefox 68, Firefox ESR 68\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `browser.newtabpage.enabled`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\NewTabPage = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/NewTabPage
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>NewTabPage</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "NewTabPage": true | false
+}
+```
+### NoDefaultBookmarks
+Disable the creation of default bookmarks.
+
+This policy is only effective if the user profile has not been created yet.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `removeDefaultBookmarks`\
+**Preferences Affected:** N/A