Awwww, dammit.
I am happy that she had the role in The Force Awakens. She had a good last year and was in the public eye a lot.
She had a great career off-screen, too. Just a taste from Wikipedia:
During the height of her career as a script doctor and rewriter, she worked on Hook (1991), Lethal Weapon 3 and Sister Act (1992), Made in America, Last Action Hero and So I Married an Axe Murderer (1993), My Girl 2, Milk Money, The River Wild and Love Affair (1994), Outbreak (1995), The Mirror Has Two Faces (1996), The Wedding Singer (1998), The Out-of-Towners and Star Wars: Episode I – The Phantom Menace (1999), Coyote Ugly and Scream 3 (2000), Kate & Leopold (2001), Star Wars: Episode II – Attack of the Clones (2002), and Intolerable Cruelty (2003), which she had done a rewrite of in 1994 although it’s not known if any of her work remained after the Coen brothers rewrote it. Fisher also worked on Mr. and Mrs. Smith and Star Wars: Episode III – Revenge of the Sith (2005).