She would likely be enraged. Umbridge has a very narrow view of the wizarding world and its values. Fanfiction can explore different relationships, alternate plotlines, and diverse interpretations of characters. This would go against her rigid beliefs. For example, if there was fanfiction that painted Dumbledore in a more negative light than she thought was appropriate, or if it showed Harry and his friends in a more rebellious and positive way than she would tolerate, she would be very angry.
She might be enraged by how the characters in the fanfiction defy authority. Since she is a stickler for rules, seeing characters like Harry Potter getting away with things in the fictional stories could make her want to rewrite the fanfiction to suit her view of a proper magical world where students are always obedient and there are no challenges to the established order.
She would probably be outraged. Umbridge is a strict and conservative character in the original series. Fanfiction often contains ideas that deviate from the 'canon' she adheres to, and she might see it as a threat to the 'proper' understanding of the wizarding world she believes in.
She could become even more vindictive. If she reads about characters who oppose her in the fanfiction, she might take it as a personal affront and start planning harsher punishments for any students who show signs of rebellion in the real Hogwarts, just like in the books.
She would probably be outraged. Umbridge is a strict and rather narrow - minded character in the original series. Fanfiction often takes creative liberties that she would likely see as subverting the 'proper' order of the wizarding world she thinks she upholds.
She would probably be outraged. Umbridge is a strict and narrow - minded character in the original series. Fanfics often deviate from the 'proper' version of events she might think, and she'd likely see it as a distortion of the wizarding world she believes she upholds.
Well, she might be outraged. Given her strict and narrow - minded nature in the original story, she'd likely find a lot to disapprove of in fanfiction. Fanfiction often explores ideas outside the official canon, and she'd probably consider it a deviation from what she believes is proper.
She'd be appalled. Umbridge is all about following the rules and maintaining the status quo. Fanfiction doesn't adhere to the official canon she so firmly believes in.
Fred and George Weasley are also favorites. Their mischievous nature can be amplified in fanfictions. They could create new and even more spectacular magical pranks specifically aimed at Umbridge, like turning her office into a never - ending maze of trick stairs and hidden rooms filled with various magical creatures that drive her crazy.
Another idea is a time - travel fanfiction. Harry goes back in time and has to deal with Umbridge when she was a student. He tries to change her path so that she doesn't become the horrible person she is in his time. This could involve him befriending her and showing her the value of kindness and freedom.