Browne played one season for the Mercyhurst Lakers before transferring to the University of Maine, playing his remaining collegiate years with the Black Bears. Browne's NCAA debut took place on September 30, 2011 with the Mercyhurst Lakers in a contest against the Quinnipiac Bobcats. He waited until October 29, 2011 for his first career NCAA goal, scoring against conference rival Lindenwood in a road contest. Browne's debut with Maine took place against Quinnipiac, with the match held on October 12, 2012. His first goal with Maine also took place on January 19, 2013 against the Vermont Catamounts. The last goal of his NCAA career occurred on February 21, 2015 against the Connecticut Huskies.
Professional
Browne signed a professional contract with the Buffalo Beauts of the newly formed NWHL on August 29, 2015. In the 2015–16 season, he played in 18 games, scored 5 goals and had 12 points. He played in 5 games in the NWHL postseason, scoring 2 goals and 2 assists. On May 14, 2016, Browne signed a second one-year contract with the Beauts. In October 2016, Browne came out as a transgender man and thus became the first openly transgender athlete in professional American hockey. Browne will not hormonally transition until the end of his professional playing career, as the hormones involved in female-to-male gender transition violate anti-doping regulations. Playing for Team Kessel, Browne scored two goals at the 2nd NWHL All-Star Game. On March 14, 2017, Browne announced he would be retiring from the NWHL at the end of the season to begin hormone replacement therapy and continue his gender transition in privacy. On March 19, 2017 Browne won the Isobel Cup with the Buffalo Beauts, becoming the first openly transgender athlete to win a national championship on a team sport. On August 7, 2017 he announced he would be putting his retirement on hold and would instead return for the 2017–18 season with the Metropolitan Riveters. On April 25, 2018 Browne won the Isobel Cup for the second time, this time with the Metropolitan Riveters. On April 30, 2018 Browne again announced his retirement from the NWHL.
Post-retirement
Since his retirement from the NWHL, Browne has primarily devoted his time to speaking engagements across North America. He has given talks and spoken on panels at colleges, such as Ohio State University, American University, and Fleming College as well as LGBTQ events, such as Outsports Pride. In August 2019, Browne announced on his personal twitter that he was beginning a new career as an actor. He emphasized that he plans to advocate for more transgender visibility in his new venture as he had in his athletic career.
