Allow fullscreen mode
Supported on: Microsoft Windows 7 or later
Registry
HKLM
Software\Policies\Google\Chrome HKCU
Software\Policies\Google\Chrome Value name: FullscreenAllowed
Enabled: FullscreenAllowed = 1
Disabled: FullscreenAllowed = 0
Description
Setting the policy to True or leaving it unset means that, with appropriate permissions, users, apps, and extensions can enter Fullscreen mode (in which only web content appears). Setting the policy to False means users, apps, and extensions can't enter Fullscreen mode.