Steve Teixeira, Mozilla chief product officer. (Photo by Dan DeLong for Mozilla.) Steve Teixeira, a former Microsoft, Facebook, and Twitter executive in the Seattle area who became chief product officer at Mozilla Corp. nearly two years ago, is suing the company for alleged discrimination and other claims after taking medical leave for cancer treatment. The suit, filed June 24 in King County Superior Court in Seattle, alleges that Mozilla and some of its executives “campaigned to demote or termi...