browser.tabs.closeWindowWithLastTab

browser.tabs.closeWindowWithLastTab

Supported on: Windows 10
Registry HiveHKEY_LOCAL_MACHINE
Registry PathSoftware\Policies\Mozilla\lockPref
Value Namebrowser.tabs.closeWindowWithLastTab
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

mozilla.admx

Administrative Templates (Computers)