| Policy Name | Description
| --- | --- |
-| **[`AppAutoUpdate`](#appautoupdate)** | Enable or disable automatic application update.
+| **[`3rdparty`](#3rdparty)** | Set policies that WebExtensions can access via chrome.storage.managed.
+| **[`AppAutoUpdate`](#appautoupdate)** | Enable or disable automatic application update.
| **[`AppUpdateURL`](#appupdateurl)** | Change the URL for application update.
| **[`Authentication`](#authentication)** | Configure sites that support integrated authentication.
| **[`BlockAboutAddons`](#blockaboutaddons)** | Block access to the Add-ons Manager (about:addons).
| **[`UserMessaging`](#usermessaging)** | Don't show certain messages to the user.
| **[`WebsiteFilter`](#websitefilter)** | Block websites from being visited.
+### 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/).
+
### AppAutoUpdate
Enable or disable **automatic** application update.
<parentCategory ref="Extensions"/>
<supportedOn ref="SUPPORTED_FF69"/>
<elements>
- <multiText id="ExtensionSettings" valueName="ExtensionSettings" maxLength="2048"/>
+ <multiText id="ExtensionSettings" valueName="ExtensionSettings" maxLength="16384"/>
</elements>
</policy>
<policy name="NoDefaultBookmarks" class="Both" displayName="$(string.NoDefaultBookmarks)" explainText="$(string.NoDefaultBookmarks_Explain)" key="Software\Policies\Mozilla\Firefox" valueName="NoDefaultBookmarks">
<parentCategory ref="firefox"/>
<supportedOn ref="SUPPORTED_FF78"/>
<elements>
- <multiText id="Handlers" valueName="Handlers" maxLength="2048"/>
+ <multiText id="Handlers" valueName="Handlers" maxLength="16384"/>
</elements>
</policy>
<policy name="Preferences" class="Both" displayName="$(string.Preferences)" key="Software\Policies\Mozilla\Firefox" explainText="$(string.Preferences_Explain)" presentation="$(presentation.JSON)">">
<parentCategory ref="firefox"/>
<supportedOn ref="SUPPORTED_FF81"/>
<elements>
- <multiText id="JSON" valueName="Preferences" maxLength="2048"/>
+ <multiText id="JSON" valueName="Preferences" maxLength="16384"/>
</elements>
</policy>
<policy name="ManagedBookmarks" class="Both" displayName="$(string.ManagedBookmarks)" key="Software\Policies\Mozilla\Firefox" explainText="$(string.ManagedBookmarks_Explain)" presentation="$(presentation.JSON)">">