Be careful with old versions!
These versions are displayed for reference and testing purposes. You should always use the latest version of an add-on.
Next to each video in the list (right hand side), there will be a small arrow, hover that arrow to open that option, click on "Copy URL to Clipboard' to copy the URL link to the clipboard.
(*) Added support to SeaMonkey 2.19.*.
(*) A fix for SeaMonkey.
(*) Fixed button location (due to changes made on YouTube).
(*) Fixed a display bug with the Options/Preferences dialog buttons.
Added compatibility to Firefox version 22.* .
Feature: You may select a preferable downloads folder or always use Firefox's default folder.
Feature: You may select to download files immediately without prompting the "Save To" dialog box.
Minor Bug: Fixed a minor bug regarding the Download Button's interface.
Bug: Fully supports earlier versions of Firefox (+3.6).
Bug: Fixed a few minor bugs.
(*) A download button is now available - Opens a Selection List.
(*) Supports all YouTube formats.
(*) As requested - Now you can download videos from channels as well.
- Fixed collision with FlashBlock add-on.
- Added 3GP video format.
Using 1-Click YouTube Download is very simple and intuitive.
Once the add-on is installed, downloading videos is only a click away.
If you like to download a video from YouTube, all you have to do is to visit the video page
and click on the MP4/FLV/3GP download links located at the bottom of the video.