Microsoft Edge more power efficient than rivals? Not so fast ...

Microsoft this week launched a PR blitz aimed at convincing consumers that its Edge browser uses less power than any of its rivals, and the company offered an impressive array of measurements to back up the claim. But do Microsoft's metrics stand up to scrutiny?Having covered the tech world for decades, I know that nothing is more subject to fudging than product testing conducted by the companies that make the products. Microsoft isn't necessarily doing anything underhanded, but consumers should