Disable YouTube 60 FPS (Force 30 FPS)
Tells YouTube that your browser only supports videos at 30FPS or less, which switches all 60FPS videos to 30FPS and allows old computers to watch high-resolution videos without stutter!
InstaMagnify: Instagram Media Downloader
Best! Greatly enhance your Instagram navigation experience! And magically view or download the highest-quality, largest versions of Instagram stories, albums, images/photos, videos and profile avatars. If you have ever wanted to save a story, album, image/photo, video or avatar, then this is for you!