Chrome Home page GPO

https://ittutorials.net/microsoft/windows-server-2016/gpo-google-chrome/

Change Mozilla Firefox home page GPO

On old versions  Mozilla ADMX does not work properly
to change home page use this bat script (create log on script policy)

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echo off
cd /D "%APPDATA%\Mozilla\Firefox\Profiles"
cd *.default
set ffile=%cd%
echo %user_pref("browser.startup.homepage", );% del /f /q "%ffile%\prefs.js"
echo user_pref("browser.startup.homepage", "http://int.psh.gov.ge");>>"%ffile%\prefs.js"
set ffile=
cd %windir%

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If your mozilla version is higher, than 60 version, you can you ADMX templates (Create computer base policy)

you can download here :

https://github.com/mozilla/policy-templates/releases

Disable IPv6 GPO

Add the preference will be Computer Configuration > Preferences > Windows Settings > Registry. In there, you want to add a new Registry Item, with the below settings on the General tab:

• Action: Update
• Hive: HKEY_LOCAL_MACHINE
• Key Path: SYSTEM\CurrentControlSet\services\TCPIP6\Parameters
• Value Name: DisabledComponents
• Value Type: REG_DWORD
• Value Data: FF
• Base: Hexadecimal