Change AppUpdateURL to only show up in machine based policies because user based policies don't apply
<list id="SearchEngines_Remove" key="Software\Policies\Mozilla\Firefox\SearchEngines\Remove" valuePrefix=""/>
</elements>
</policy>
- <policy name="AppUpdateURL" class="Both" displayName="$(string.AppUpdateURL)" explainText="$(string.AppUpdateURL_Explain)" key="Software\Policies\Mozilla\Firefox" presentation="$(presentation.AppUpdateURL)" >
+ <policy name="AppUpdateURL" class="Machine" displayName="$(string.AppUpdateURL)" explainText="$(string.AppUpdateURL_Explain)" key="Software\Policies\Mozilla\Firefox" presentation="$(presentation.AppUpdateURL)" >
<parentCategory ref="firefox" />
<supportedOn ref="SUPPORTED_FF62" />
<elements >