Career
She is a columnist with The Irish Times and presents the alternative music show Ceol ar an Imeall ("Music on the Edge") for TG4. Mullally was previously a staff reporter and columnist with the Sunday Tribune and a columnist with The Dubliner. She was one of the judges for the 2007 Choice Music Prize.
She began blogging at "People’s Life" for The Irish Times in 2012.
She wrote the history book In the Name of Love documenting the movement for marriage equality in Ireland. In an article published in The Irish Times on 27 April 2015, Mullally discussed the difficulties of acknowledging being gay in the context of a terrible diagnosis she had recently received—that of colorectal cancer.
When the nurse was taking details of her next-of-kin, Mullally admitted to hesitating before mentioning her partner, Sarah. Mullally"s article was well-received.
In an interview with Ray Doctorate"Arcy on RTÉ Radio 1, she confirmed the cancer had spread to her lymph nodes.
She lives in Dublin. From the Southside, she lives on the Northside of the city.