Several things that I read:
1. She wanted a different gig than a weekend slot.
2. She got offered a different opportunity elsewhere
3. She quit abruptly and the station didn’t acknowledge her departure immediately
Fox News fires hosts abruptly.... Below the host asked for a pay raise as she anchored 2 shows. She was fired instead. She settled for $15 million after taking Fox News to court.
Former Fox News Host Melissa Francis Was Fired Via a ‘You’ve Been Canceled’ Teleprompter Message
https://www.thewrap.com/melissa-francis-fox-news-fired-via-teleprompter/
Thanks.