Video DownloadHelper - Browser extension to download videos from the Web
Iridium by ParticleCore - Iridium is an extension built to improve the user experience on the new YouTube Material layout.
Flash Video Downloader - Flash Video Downloader is a popular extension for Google Chrome browser for downloading wide range of files over the internet.
Enhancer for YouTube - Tons of features to improve your user experience on YouTube™!
Easy Youtube Video Downloader Express - Easy Youtube Video Downloader Express is one of the best YouTube downloading extensions for the Mozilla Firefox that lets the Firefox users to download all type of YouTube videos via the downloader of their favorite web browser.
ImprovedTube - Allows you to improve and enhance Youtube visually or enable dozens of new features permanently or...