OK, I've selected automatic updates for Firefox. MacBook Air. So, I need to restart in order for the update to INSTALL. I can't just close and re-open Firefox to get the update. After I restarted, Youtube would not play. AGAIN. This happens with EVERY update. So, following instructions from an entry on the web, I erased my history. OK, now Youtube plays. But I notice I've lost my bookmarks in the process. I've mentioned this before. What's the secret to getting you experts to pay attention to this annoying, recurring thing? I would not have lost my bookmarks if I did not have to erase my history. Why can't updates be provided that will allow me to play youtube and KEEP my bookmarks--- like on every other day??? Thank you.