All freezable task queues (beyond timers and loading) in blink scheduler will be frozen when a renderer has been in the background after a grace time of 5 minutes on Android. Many sites continue activity, even after their app has been in background for over 5 minutes. This consumes non-trivial amount of CPU and network bandwidth, and hurts the responsiveness of the foreground app, especially on mobile. This intervention completes freezing background work on mobile.


Status in Chromium


Enabled by default (tracking bug) in:

  • Chrome for Android release 68

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

  • No signal
  • No signal
  • No signal
  • No signals


Last updated on 2020-11-09