+### Extensions
+This policy controls the install, uninstall and locking of extensions. Locked extensions cannot be disabled or uninstalled.
+For Install, you can specify a list of URLs or paths.
+For Uninstall and Locked, you specify extension IDs.
+```
+{
+ "policies": {
+ "Extensions": {
+ "Install": ["https://addons.mozilla.org/firefox/downloads/somefile.xpi", "//path/to/xpi"]
+ "Uninstall": ["addon_id@mozilla.org"],
+ "Locked": ["addon_id@mozilla.org"]
+ }
+```