How to reduce the resource consumption of a browser? By putting tabs that are not in use to sleep. Microsoft is working on this concept for its Edge browser, with the “sleeping tabs” function. According to the publisher, this function saves on average about 26% memory usage and 23% processor usage.
This function uses Chromium’s “freezing” technology so that tabs that are inactive for a certain time can free up memory and processor resources. The time limit is set by default at 2 hours, but it will be possible to modify it. Microsoft has even provided for the case of certain sites which no longer function correctly after their tab is put to sleep. This type of behavior is then detected and standby is not activated.
This new feature will soon be available in the Dev and Canary channels (87.0.649.0) for testers to try.
Google is working on a similar function for its browser Chromium. Called “tab freeze”, it is currently reserved for developers who use the Canary version of the browser. Note also the existence of a “pause” function in the browser Vivaldi, but which has more vocation to temporarily cut itself off from the web than to free up resources.
Source : Microsoft