Web browsers like Mozilla's Firefox and Apple's Safari already block third-party cookies by default, so Google Chrome would have just been playing catch-up. However, Chrome makes up a whopping 66 percent of the global web browser market share, so most internet users are still exposed to third-party cookies thanks to Google.

As Google continues to deal with government scrutiny over its search and advertising business practices (with the possibility that parts of its business will need to be broken off hanging in the air) OpenAI has thrown its hat into the ring for the company's browser business.

Google’s Chrome web browser could be sold for as much as $50 billion, the chief executive officer of rival search engine DuckDuckGo testified Wednesday at the Justice Department’s antitrust trial against the internet giant.