Original sentence: During Kovacs' tenure Mozilla expanded into the mobile market with the launch of Firefox OS, its open mobile operating system.Gary Kovacs (born 1963 or 1964) is a San Francisco Bay Area technologist.Kovacs moved to Macromedia in 2003, working as Vice President of Product Marketing.Kovacs previewed Firefox OS at Mobile World Congress 2013, garnering commitments from 18 major worldwide mobile operators.Kovacs spent more than 25 years in software and mobile technology
Edited sentence: During his tenure, Mozilla has grown significantly.Gary Kovacs (born 1963 or 1964) is a San Francisco Bay Area technology innovator.Its core desktop business has experienced renewed success,  and the company has expanded into mobile with the recent launch of Firefox OS, its open mobile operating system.Kovacs has spent more than 25 years as a leader in software and mobile technology.Kovacs previewed Firefox OS at Mobile World Congress 2013, garnering significant industry support with commitments from 18 major worldwide mobile operators.Kovacs took his mobile expertise to Macromedia in 2003, working as Vice President of Product Marketing