The 53-year-old actress was fired from the show in 1993 and replaced by actress Daphne Maxwell Reid.
Now the twice-married, mother of one has penned a memoir, 'Perfection Is Not A Sitcom Mom' that is slated to be released early in 2010.
In the book, Hubert lashes out at Smith and accuses the then-hip hop superstar of sabotaging her and other talented actors who worked on the 30-minute NBC comedy.
In one excerpt from the tome, given toBV Buzz exclusively, Hubert writes: "Smith had people around him who made sure no one outshone him. I was happy to see Don Cheadle become the quality actor that he is, and often wondered how he made it past one episode, as Hilary's boyfriend, being such a fierce actor. No one could be on 'The Tonight Show,' that first season, except Will. And I mean no one."
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