Adobe Flash Player
The plugin that made the web fun, weird, and occasionally explode. RIP, browser crashes.

Quick Bits
What It Was
Adobe Flash Player was the browser plugin that powered a giant chunk of the early interactive web, from cartoons and games to video players and deeply unnecessary intros. For years, it was the engine behind the internet's motion, chaos, and occasional nonsense.
Why It Mattered
Flash blew open what people thought websites could do. It gave creators a home for cartoons, games, ads, weird interactive experiments, and rich media long before open standards were ready to keep up.
Why It Had to Go
Security issues, performance problems, and the rise of mobile made a heavyweight browser plugin increasingly impossible to defend.
Flash still matters because it was both a creative superpower and a technical menace, which made its downfall feel inevitable, dramatic, and oddly deserved.