Opt Out of Personalized Ads

Keep My Opt-Outs is an extension for Google Chrome users who aren’t comfortable with personalization of the ads they see on the web. It’s a one-step, persistent opt-out of personalized advertising and related data tracking performed by companies adopting the industry privacy standards for online advertising.

https://chrome.google.com/webstore/detail/hhnjdplhmcnkiecampfdgfjilccfpfoe?hl=en-US#