Pepflashplayer is a browser plugin developed by Google that allows Web Browsers to run Adobe Flash content. It is specifically designed for use with the Pepper Plugin API (PPAPI), which provides a more secure and efficient way to handle Flash content compared to traditional NPAPI plugins. Pepflashplayer is primarily used in the Chrome browser and other Chromium-based browsers, enabling users to access Flash-based applications and content seamlessly. However, with the end of support for Adobe Flash Player in December 2020, the use of Pepflashplayer has significantly declined.