Default pop-ups setting
Supported on: Microsoft Windows 7 or later
Registry
HKLM
Software\Policies\Google\Chrome HKCU
Software\Policies\Google\Chrome Options
DefaultPopupsSetting enum - Allow all sites to show pop-ups
->
1 - Do not allow any site to show pop-ups
->
2
Description
Setting the policy to 1 lets websites display pop-ups. Setting the policy to 2 denies pop-ups. Leaving it unset means BlockPopups applies, but users can change this setting.