Permanent Progress Bar for YouTube is a Firefox extension designed to enhance the video viewing experience on YouTube by providing a persistent progress bar. This feature allows users to easily monitor their current viewing progress, including both the percentage of the video watched and the amount that has loaded. The extension is particularly beneficial when watching videos in fullscreen mode, as it enables users to keep track of their progress without relying solely on the default controls provided by YouTube.

In addition to its core functionality, the extension offers customization options, allowing users to adjust the height of the progress bar to suit their preferences. This flexibility enhances usability and ensures that the progress bar remains visible and appropriately sized for the viewing experience. Overall, Permanent Progress Bar for YouTube aims to deliver a more informative and seamless way to manage video playback on the platform.