Hey,

Please link to the addon that you're referring to (search it's name at the Mozilla Addons site).

Thanks!

Curtis

Sorry , You download videos using flash videos downloader which is used to download videos but Firefox doesn't support it completey for the Mozilla framework.As you can see you could sometime have an error like this "Download temporarily unavailable" which si forced closed from the remote host like eg: youtube.com. So without the third party application like Internet Download manager you can't simply keep the connection alive.IDM can help you download more videos than any other softwares.You can get IDM at internetdownloadmanager.com the IDM addon latest version are IDMcc.com This post is not the fix or the abbrevation to the another software , just a suggestion.