Online advertising can be more than just annoying. It can also violate users’ privacy through tracking technology meant to help target ads and measure response. Users have long had a range of tools at their disposal to combat aggressive or nosey ad-tech. But these tools often require users to install new software, or poke around in their browser's settings. Today, Mozilla, the company behind the popular Firefox browser, said it will take more aggressive measures to protect users' privacy.Learn more about your ad choices. Visit megaphone.fm/adchoices