Thanks for the suggestions but I have a bookmarks folder of active You Tube channels that do not have RSS feeds (in addition to the 40 I subscribe to by RSS with Thunderbird) that I check daily for new videos that I might want to watch. Since Chrome just asks if I am sure then opens them in tabs without any problems, I'll just use Chrome for You Tube. Maybe a newer version of Firefox will be able to handle it.
![[Image: EtYqOrS.png%5D]](http://i.imgur.com/EtYqOrS.png%5D)
Left Mac OS X for Linux in Jan 2014