Chrome 131 prioritizes battery-friendly tabs and ships revamped DevTools for performance introspection

Tech · 5 min read

Google's Chrome 131 update adds a tab resource prioritization layer that downgrades background tabs' CPU and network budgets automatically, aiming to improve battery life on laptops and Chromebooks. Developers can annotate pages as low-latency or background-critical to opt out, and DevTools surfaces these annotations for debugging.

DevTools received a significant refresh with dedicated panes for energy profiling, GPU scheduling, and frame-level rendering diagnostics. There are new visualizations for CPU wakeups, wake lock usage, and the rendering pipeline, which should help engineers identify power-hungry patterns in web apps.

Google also added a lab for experimental APIs that allow progressive web apps to declare energy-awareness hints and for browsers to expose suggested battery-optimized rendering modes. Web developers note the tooling makes it easier to quantify the battery costs of heavy animations and background sync.