[gelstudios]

https://www.mozillazine.org/articles/article2278.html

> June 5, 2002 - Mozilla.org, the organization that coordinates Mozilla open-source development and provides services to assist the Mozilla community, today announced the release of Mozilla 1.0, the first major-version public release of the Mozilla software. A full-fledged browser suite...

IIRC one of Mozilla's v1 killer features was "tabs" in a time when opening links in a new window was the only (mainstream) option for a meandering web junkie.

Trademark games are pretty common in consumer tech. FaceTime and iOS are high profile examples of names ("marks" in parlance) that ended up licensed / transferred.