Youtube Video Downloader extension (by Jonathan Lynch)

You can use Mactubes.

I just tired it using it on my Air with Lion and it worked for me.

I got the button and was able to DL the video. What happens when you try?

I just installed this and I get the "download" button on some videos but not on others (mostly it doesn't show up). I thought there might be a conflict with click-to-flash, but it acts the same with c-to-f installed or not.

Anyone else having this only appear periodically? One general observation is that it seems to appear more with homemade type videos and less with professional made type videos.

By the way, I've found that while running Click-to-Flash I just need to right click on the video and there is an option to download it. Works on all youtube videos.