In July 1944, she towed the damaged to Plymouth after the "Matane" had been struck by a glider bomb. In October 1944 she escorted a convoy to Gibraltar and in December, convoys on the Murmansk run to the Kola Inlet. During this period, "Stormont" spent a record 63 days at sea, the longest active period of any frigate during the war. She returned to Canada in early 1945 to begin a tropicalization refit at Shelburne, Nova Scotia in preparation for service in the Pacific Ocean. The refit, which was begun in June 1945, was cancelled on 20 August, due to the surrender of Japan. She was decommissioned by the RCN on 9 November 1945 and placed in reserve.