Your tabs can take a nap on Microsoft Edge Canary to save memory
(Windows Phone Central)

A quick little snooze of your tabs can save RAM on your PC. What you need to know Microsoft is testing a Sleeping Tabs feature for Microsoft Edge. The feature puts tabs to sleep after a selected length of inactivity. The feature should reduce how much memory your PC uses. Microsoft Edge has a new Sleeping Tabs feature available in testing for people on the Canary channel (via Techdows). The feature puts tabs to sleep after a specified length of inactivity, which frees up memory on your PC. To use the feature right now, you need to enable it using edge://flags on Microsoft Edge Canary. On Microsoft Edge, you can choose how long a tab has to be inactive before it goes to sleep. You can also select a list of sites to never go to sleep. Here`s how to enable Sleeping Tabs in Microsoft Edge: Open Microsoft Edge Canary. Go to edge://flags through the address bar. Search `Sleeping` through the search bar. Select Enable next to `Enable Sleeping Tabs.` Here`s how to customize how lo...