[3] Turner was previously employed by Netscape before the creation of the Mozilla Foundation.

Doug Turner invented Geolocation[4][failed verification] on the Web,[5] Device Orientation on the web[citation needed], and is a leader in device access.

Doug Turner was the maintainer of the now-defunct Minimo[9] project and worked on its successor Firefox for mobile[citation needed].

Doug Turner led the effort to rewrite the Firefox Mobile browser in order to improve performance, responsiveness, and memory usage.

[10][failed verification] Doug Turner left Mozilla in September 2016.