}
}
```
+### DisableProfileRefresh
+This policy disables the Refresh Firefox button on about:support and support.mozilla.org.
+```
+{
+ "policies": {
+ "DisableProfileRefresh": true
+ }
+}
+```
### DisableSafeMode
This policy disables safe mode on Windows only
```
}
}
```
+### DisableSecurityBypass
+This policy prevents the user from bypassign security in certain cases.
+```
+{
+ "policies": {
+ "DisableSecurityBypass": {
+ "InvalidCertificate": [true|false], /* Prevents adding an exception when an invalid certificate is shown */
+ "SafeBrowsing": [true|false] /* Prevents selecting "ignore the risk" and visiting a harmful site anyway */
+ }
+ }
+}
+```
### DisableSysAddonUpdate
This policy prevents system add-ons from being updated or installed.
```
}
}
```
+### DisableTelemetry
+This policy prevents the upload of telemetry data. Mozilla strongly recommends that you do NOT disable telemetry if you do not have a business need to do so.
+```
+{
+ "policies": {
+ "DisableTelemetry": true
+ }
+}
+```
### DisplayBookmarksToolbar
This policy turns on the bookmarks toolbar by default. A user can still turn it off and it will stay off.
```