Home Online Advertising Firefox to Block Third-Party Cookies in Privacy Update

Firefox to Block Third-Party Cookies in Privacy Update

SHARE:

FirefoxMozilla’s Firefox browser will have a new cookie policy when its release 22 comes out later this year. The new patch, developed by privacy advocate Jonathan Mayer, will allow first-party cookies, but block third-party cookies.

“The new cookie policy is intended to better conform to user privacy expectations and preferences,” Mayer said in an email with AdExchanger. “For my part, I share Mozilla’s enthusiasm for making Do Not Track a reality. It would provide consumer choice over third-party web tracking that is comprehensive, persistent, and polite (i.e. without technical intervention).”

The policy will be similar to that of Safari, which allows cookie permissions for first-party content and for third-party content only if it already has one cookie set, Mayer explained in a blog post about the policy.

Alex Fowler, global privacy and public policy lead for Mozilla, wrote a post on the Mozilla Privacy Blog about the update: “Many years of observing Safari’s approach to third party cookies, a rapidly expanding number of third party companies using cookies to track users, and strong user support for more control is driving our decision to move forward with this patch.”

A couple tweets from advertisers have been circulating in the media coverage of this new policy, but Mayer said he and Mozilla are open to dialogue and feedback from users and the industry.

“In my conversations with Mozillans, their thinking was guided exclusively by two touchstones,” Mayer told AdEchanger. “Does this make Firefox a better product for its users? And does this advance the web ecosystem?”

Must Read

For Video Publishers, Performance And AI Go Hand In Hand

In Connected TV Ad Land, proving performance is the priority for video advertisers. To drive more demonstrable reach and results, publishers are trying to expand their reach while wringing more data and AI features into their offerings. 

Independent Ad Tech Is Reframing Itself Around Cloud Hardware

Nowadays, programmatic vendors, and SSPs in particular, are carving new paths of differentiation based on their type of adoption of cloud infrastructure.

Ad Performance Hinges On Kicking Fragmentation’s Butt

As performance takes center-stage in more advertising discussions, demands to solve fragmentation and cruddy measurement are reaching a fever pitch.

Privacy! Commerce! Connected TV! Read all about it. Subscribe to AdExchanger Newsletters
AdExchanger's Big Story podcast with journalistic insights on advertising, marketing and ad tech

AI Off The Rails

A word of caution to digital advertising companies, as they go all in on AI algorithms: They need to build these solutions with ownership, governance and accountability from the start – or AI could sink them with a single mistake.

square Headshot of Mohammad (Moe) Chughtai, global VP of strategy & partnerships at MiQ, against an orange and yellow gradient background

Better Attribution Makes Live Sports A Performance Play

To squeeze the most juice out of their live sports campaigns, many marketers are adopting programmatic buying and marketing mix modeling, both of which are also drawing more advertisers to the digital live sports cornucopia.

Roblox Opens Up Advertising To Kids Under 13

Roblox is making its under-13 audience available to advertisers for the first time. And it named youth-focused ad marketplace SuperAwesome as its exclusive advertising partner for under-13 users.