Im currently using Firefox 40.0.3 but certain pages on Youtube are giving me grief. When I try to open the video's webpage, only the backgroud will load and after a second or two Firefox will automatically return to the previous page I was on. This cannot be cancelled by pressing the 'stop loading page' button and restarting and clearing the cache doesn't help. The affected videos will not appear in my playlists even if they were already in there and they cannot be found through searching or channel upload pages. My situation does not affect Chrome and I can use it to search for the videos, get the URLs and paste them into Firefox but the above problems occur still.