 She grew up in West Ryde, and was educated at the Presbyterian Ladies' College, Sydney in Croydon (together with schoolmate Johanna Pigott), where she was elected School Captain and was a winner of a prestigious PLC Gold Medallion in 1972.After finishing school, Webber enrolled at the University of Sydney, where she studied architecture and discovered her passion for writing comedy.In 1981, Webber joined the ABC's youth radio network Triple J, as a member of the comedy group The "J-Team", which also included the late Lance Curtis.