Configure sleeping tabs
Supported on: Microsoft Edge version 88, Windows 7 or later
Registry
Software\Policies\Microsoft\Edge\Recommended Software\Policies\Microsoft\Edge\Recommended Value name: SleepingTabsEnabled
Enabled: SleepingTabsEnabled = 1
Disabled: SleepingTabsEnabled = 0
Description
This policy setting lets you configure whether to turn on sleeping tabs. Sleeping tabs reduces CPU, battery, and memory usage by putting idle background tabs to sleep. Microsoft Edge uses heuristics to avoid putting tabs to sleep that do useful work in the background, such as display notifications, play sound, and stream video. By default, sleeping tabs is turned on. Individual sites may be blocked from being put to sleep by configuring the policy 'SleepingTabsBlockedForUrls' (Block sleeping tabs on specific sites). If this policy is enabled, sleeping tabs are turned on. If this policy is disabled, sleeping tabs are turned off. However, during moderate memory pressure, the system may freeze (sleep) tabs before discarding them. If this policy is not configured, users can choose whether to enable sleeping tabs.