In mid-April, "Forester" was part of the close cover for Convoy PQ 14 to Murmansk. On 28 April, "Forester" joined the escort of returning Convoy QP 11, and two days later, when the light cruiser was torpedoed, she and her sister "Foresight" were detached to escort the crippled cruiser back to Murmansk. On 1 May "Edinburgh" and her escorts were attacked by the German destroyers , and . "Forester" fired her torpedoes at "Z25", but was almost simultaneously hit by three shells. They disabled 'B' and 'X' guns and the hit in No. 1 boiler room temporarily disabled her propulsion machinery. Twelve crewmen were killed, including her captain, and nine were wounded. "Foresight" was also temporarily disabled and the Germans put another torpedo into "Edinburgh", crippling her, before breaking off the engagement to rescue the crew of the crippled "Z7 Hermann Schoemann". The two British destroyers took off the survivors from the cruiser and "Foresight" scuttled the cruiser with a torpedo before heading back to Murmansk for temporary repairs. She sailed on 13 May with "Foresight" and the destroyers and as escorts for the light cruiser that had been damaged while escorting Convoy PQ 13. The next day the ships came under heavy air attack, and "Trinidad" was further damaged and set on fire. "Forester" took off the wounded and other survivors, and "Trinidad" was sunk by "Matchless". "Forester" arrived at Scapa Flow on 18 May and immediately took passage to a shipyard on the Tyne for repairs that lasted until October. That month, she rejoined the 8th DF and resumed escorting convoys to Russia until April 1943. The ship was then refitted at Leith until June.