A cutting out expedition ordered by Admiral Edward Boscawen of the British Royal Navy captured her on the night of 25 July 1758 during the 1758 Siege of Louisbourg.

[2][3] In late 1777 Bienfaissant, Captain McBride, captured American Tartar privateer, of 24 guns and 200 men.

[4] She took part in the Battle of Cape St Vincent in 1780 and the capture of the Comte de Artois off Ireland in August.

On 19 July 1780, Bienfaisant encountered the French 32-gun frigate Nymphe, returning to Brest from America under Du Rumain.

[5] Bienfaisant participated, under the command of Captain Braithwaite, in the 1781 Battle of Dogger Bank with reduced armament on her lower deck as the last ship in the line.