Policies can be specified using the [Group Policy templates on Windows](https://github.com/mozilla/policy-templates/tree/master/windows), [Intune on Windows](https://support.mozilla.org/kb/managing-firefox-intune), [configuration profiles on macOS](https://github.com/mozilla/policy-templates/tree/master/mac), or by creating a file called `policies.json`. On Windows, create a directory called `distribution` where the EXE is located and place the file there. On Mac, the file goes into `Firefox.app/Contents/Resources/distribution`. On Linux, the file goes into `firefox/distribution`, where `firefox` is the installation directory for firefox, which varies by distribution or you can specify system-wide policy by placing the file in `/etc/firefox/policies`.
+Unfortunately, JSON files do not support comments, but you can add extra entries to the JSON to use as comments. You will see an error in about:policies, but the policies will still work properly. For example:
+
+```
+{
+ "policies": {
+ "Authentication": {
+ "SPNEGO": ["mydomain.com", "https://myotherdomain.com"]
+ }
+ "Authentication_Comment": "These domains are required for us"
+ }
+}
+```
+
| Policy Name | Description
| --- | --- |
| **[`3rdparty`](#3rdparty)** | Set policies that WebExtensions can access via chrome.storage.managed.