Now Google Chrome, too, is trying to curtail privacy problems posed by cookies -- the small text files websites store that can track you online.

"We're changing how cookies work in Chrome, making them more private and secure by default," said Tal Oppenheimer, a Chrome product manager speaking at the Google I/O show for developers Tuesday.

Cookies have been useful for decades for actions like remembering that you're signed into a website or keeping that toothpaste in your e-commerce shopping cart.

They also turned out to be useful for letting advertisers and publishers track you online -- including your activity as you traveled around many websites on the web.

Curtailing cookie powers is a big step toward user privacy, though it may not go as far as other browsers.

Google believes that draconian cookie blocking has an unintended consequence, though, which is that websites figure out ways to track you that sidestep cookies and that you can't control at all.

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