}
```
### InstallAddons
-This policy sets domains that can install extensions
+This policy sets domains that can install extensions, as well as the default behavior.
```
{
"policies": {
"InstallAddons": {
"Allow": ["http://example.org/",
"http://example.edu/"]
+ "Default": [true|false], /* If this is set to false, add-ons cannot be installed by the user */
}
}
}
}
}
```
+### OverrideFirstRunPage
+This policy allowed you to override the first run page. If you leave the URL blank, the first run page will not be displayed.
+```
+{
+ "policies": {
+ "OverrideFirstRunPage": "http://example.org"
+ }
+}
+```
+### OverridePostUpdatePage
+This policy allowed you to override the upgrade page page. If you leave the URL blank, the upgrade page will not be displayed.
+```
+{
+ "policies": {
+ "OverridePostUpdatePage": "http://example.org"
+ }
+}
+```
### Bookmarks
This policy allows you to specify bookmarks. You can have any number of bookmarks although only ten are specified in the ADMX file.
Placement can be specified as either toolbar or menu. If a folder is specified, it is automatically created and bookmarks with the