Google is rolling out some new Chrome memory management features aimed at helping you wrangle out-of-control tabs more easily. The updates include new “Performance issue alerts” and some tweaks to the existing Memory Saver mode, which already tries to free up the resources of inactive tabs in the background.

The new alerts appear when a new Performance Detection tool finds that one of your tabs is using more resources than it should. The notification appears next to your account thumbnail in Chrome’s toolbar as a tiny graphic that looks like a speedometer. (If I didn’t know about it already, I might think I’d accidentally added an Ookla Speedtest extension to my browser.) If you click the graphic, it will list the offending tabs and give...

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