Somer Simpson
VP, Product Management at Mozilla
Leading Mozilla's product strategy on privacy-preserving advertising and identity technologies, and representing the browser vendor perspective in the post-third-party-cookie transition.
Last updated May 31, 2026 by ATDb automated enrichment
Somer Simpson is a product leader at Mozilla whose work sits at the intersection of browser technology, user privacy, and the evolving digital advertising ecosystem. As VP of Product Management, she has been instrumental in shaping Mozilla Firefox's approach to privacy-preserving advertising technologies, contributing to industry conversations about how browsers can support sustainable advertising without compromising user data. Her work at Mozilla has placed her at the center of one of AdTech's most consequential debates: how to replace third-party cookies with privacy-safe alternatives that still allow publishers and advertisers to operate effectively. Mozilla has been an active participant in standards bodies and industry working groups exploring solutions such as contextual targeting, on-device processing, and privacy-preserving measurement frameworks. Simpson's influence extends beyond Mozilla's product roadmap into broader industry standards discussions, where browser vendors play a critical gatekeeping role in determining which advertising technologies can function on the open web. Her perspective represents the privacy-first browser constituency in an ecosystem still negotiating the post-cookie transition.
- Led Mozilla's product efforts on privacy-preserving advertising technology alternatives to third-party cookies
- Contributed to industry standards discussions on browser-based approaches to advertising identity and measurement