David Bryant

Head of Firefox (Interim) at Mozilla


David rejoined Mozilla as interim Head of Firefox in June 2022, having previously been with the company for six years, most recently as Fellow in our Emerging Technologies organization, where he was responsible for providing technical expertise and representation for engineering broadly in all aspects of company decision making.

In the past, David has held a variety of roles leading product engineering, marketing, sales enablement and technology licensing businesses at Bell Laboratories, Sun Microsystems and Nokia. He was at Bell Labs during the formative years of Unix, working on signal processing and computer graphics components for running the long distance network and, after divestiture, exploring new business opportunities for AT&T. At Sun he managed product teams responsible for key components of Solaris and Sun’s enterprise internet software stack, including as part of the Sun/Netscape alliance, as well as for the Java platform in embedded and desktop systems. Throughout his career, he has been motivated by building internet and computing technology solutions for real-world problems that matter to people.

David grew up in Nashville, Tennessee, and holds Bachelor of Science and Master of Engineering degrees in Electrical Engineering from the University of Tennessee.


  • Head of Firefox (Interim)

    Current role

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