To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
CloseReview for Easiest YouTube Video Downloader by Frank Lion
Rated 5 out of 5 stars
This extension is very simple to use and works very well with the latest version of SeaMonkey (2.49.3 atm) and using the 'old style' page layout of YouTube. Well done.
To create your own collections, you must have a Mozilla Add-ons account.