Okay, so I've had the Easy Youtube Video Downloader (version 5.2) for a very long time now, and only a short while ago did this begin happening. I was about to watch a video on youtube, but when the video was about to start playing (after the page loaded), an error message appeared. It said: "Error: BVDCORE.videoFormats is undefiined."
I looked around for a solution and found one, but I had to disable the youtube video downloader plug-in, so I can't download videos. I let firefox check my plug-ins to see if they were up-to-date, and the java one wasn't so I updated it. I enabled the video downloader again, and got the same message, and none of the download options appeared.
I really need a solution to this. I like being able to download youtube videos, so help would make me most grateful.