This plug-in used to be great. Recently, however, it breaks on a weekly basis. There are much better youtube downloaders that never break: video download helper and youtube download button being the two best.
When this one works, it's awesome. The problem is it rarely works.
Pls. update to latest v 15.7, whenever youtube changes code every downloader out their breaks. This time it took longer for me to fix and then ever longer for mozilla to review and approve the update. If you find the addon working again, pls. re-rate the extension :)
