It’s often hard to tell which is the Web’s priority: helping you learn about the world or helping the world — and especially advertisers — learn about you.

But that balance is beginning to shift, to the delight of consumer advocates and the horror of industry groups. Browser makers increasingly are embracing privacy controls that could limit the ability of advertisers to track ­users, threatening to undermine business models that now support many popular online services.

Read Full Article: Web browsers consider limiting how much they track users