[3][4] As a member of the strongly anti-Catholic Protestant Association, De Fleury actively defended Lord George Gordon, who had instigated it and was accused by Charles Wesley and others of inciting the riots over the restoration of civil rights to Catholics.
[7] Included was a work in couplets entitled "British Liberty Established and Gallic Liberty Restored, or The Triumph of Freedom", where she compares herself to Deborah celebrating Jael and honours such figures and events in history as Alfred, Magna Carta, Oliver Cromwell, King George III and the French Revolution.
[5] De Fleury, encouraged by John Ryland,[4] became involved again as a controversialist in a "pamphlet war" with the preacher William Huntington and his ostensible Antinomianism.
Her Letter of November 1787 elicited from him abuse from the pulpit, and from his daughter a 1788 pamphlet entitled Mother Abbess denying the place of women in the area of public debate.
Her Antinomianism Unmasked and Refuted (1791) again drew a printed retort from Huntington (The Broken Cistern) and another series of responses, De Fleury's Falsehood Examined on the Bar of Truth and Huntingdon's An Answer to Fools.