The maker of the popular Firefox browser is moving ahead with plans to block the most common forms of Internet tracking, allowing hundreds of millions of users to eventually limit who watches their movements across the Web, company officials said Wednesday.

Firefox’s developers made the decision despite intense resistance from advertising groups, which have argued that tracking is essential to delivering well-targeted, lucrative ads that pay for many popular Internet services.

It should be the user’s decision. If they don’t mind, fine.