During the 2010 general election, Firth announced his support for the Liberal Democrats, having previously been a Labour supporter, citing asylum and refugees' rights as a key reason for his change in affiliation. In December 2010, Firth publicly dropped his support of the Liberal Democrats, citing their U-turn on tuition fees as one of the key reasons for his disillusionment. He also said that while he no longer supports the Liberal Democrats, he is currently unaffiliated. Firth appeared in literature to support changing the British electoral system from first-past-the-post to alternative vote for electing members of parliament to the House of Commons in the unsuccessful Alternative Vote referendum in 2011.