Allow third-party browser extensions: registry value Enable Browser ExtensionsComputerHKLM\Software\Policies\Microsoft\Internet Explorer\Main
- Policy ID
- Advanced_EnableBrowserExtensions
- Scope
- Computer Configuration, User Configuration
- Supported on
- At least Internet Explorer 6.0 in Windows 2003 Service Pack 1
- Source
- Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
- Category
- Windows Components › Internet Explorer › Internet Control Panel › Advanced Page
Registry
Enable Browser Extensions
REG_SZComputerUser…\Software\Policies\Microsoft\Internet Explorer\MainHKLM\Software\Policies\Microsoft\Internet Explorer\Main Current key
HKCU\Software\Policies\Microsoft\Internet Explorer\Main
HKCU\Software\Policies\Microsoft\Internet Explorer\Main
- Enabled value
- yes
- Disabled value
- no
Apply with .reg · CMD · PowerShell
ComputerMachine-wide setting
.reg
Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Internet Explorer\Main] ; Options (use only one) ; Enabled "Enable Browser Extensions"="yes" ; Disabled "Enable Browser Extensions"="no"
CMD
:: Options (use only one) :: Enabled reg add "HKLM\Software\Policies\Microsoft\Internet Explorer\Main" /v "Enable Browser Extensions" /t REG_SZ /d "yes" /f :: Disabled reg add "HKLM\Software\Policies\Microsoft\Internet Explorer\Main" /v "Enable Browser Extensions" /t REG_SZ /d "no" /f
PowerShell
# Common: create the key New-Item -Path 'HKLM:\Software\Policies\Microsoft\Internet Explorer\Main' -Force | Out-Null # Options (use only one) # Enabled New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Internet Explorer\Main' -Name 'Enable Browser Extensions' -PropertyType String -Value 'yes' -Force | Out-Null # Disabled New-ItemProperty -Path 'HKLM:\Software\Policies\Microsoft\Internet Explorer\Main' -Name 'Enable Browser Extensions' -PropertyType String -Value 'no' -Force | Out-Null
UserPer-account setting
.reg
Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Main] ; Options (use only one) ; Enabled "Enable Browser Extensions"="yes" ; Disabled "Enable Browser Extensions"="no"
CMD
:: Options (use only one) :: Enabled reg add "HKCU\Software\Policies\Microsoft\Internet Explorer\Main" /v "Enable Browser Extensions" /t REG_SZ /d "yes" /f :: Disabled reg add "HKCU\Software\Policies\Microsoft\Internet Explorer\Main" /v "Enable Browser Extensions" /t REG_SZ /d "no" /f
PowerShell
# Common: create the key New-Item -Path 'HKCU:\Software\Policies\Microsoft\Internet Explorer\Main' -Force | Out-Null # Options (use only one) # Enabled New-ItemProperty -Path 'HKCU:\Software\Policies\Microsoft\Internet Explorer\Main' -Name 'Enable Browser Extensions' -PropertyType String -Value 'yes' -Force | Out-Null # Disabled New-ItemProperty -Path 'HKCU:\Software\Policies\Microsoft\Internet Explorer\Main' -Name 'Enable Browser Extensions' -PropertyType String -Value 'no' -Force | Out-Null