As a result, it is worth optimizing (i.e. “Web browsers are popular applications and can be power-intensive, and therefore can significantly affect battery life.

The Web Developer Tools will be displayed at the bottom of the screen and you’ll need to access the Performance tab and select Power from the drop-down list. You can enable Firefox’s power profiling feature by accessing the hamburger menu at the top right of the window and clicking on More tools > Web Developer Tools. The Firefox power profiler lets you visualize performance data recorded from web browsers, which may come in handy if you’re using a laptop and you are concerned about battery life and want to extend it by avoiding websites that consume lots of CPU usage. This feature was already supported on Windows 11 and Apple M1 Macs since Firefox 104, but now it’s also available for Intel processors used in Linux/Mac desktop and laptop machines.

The biggest change in Firefox 107 appears to be support for power profiling on Linux and Mac systems with Intel CPUs.

Mozilla released today Firefox 107 for download as the latest stable version of its popular, free, cross-platform, and open-source web browser that brings new features and improvements.

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