Firefox's newest release once again breaks browser screens for users who prefer tabs on bottom (as originally presented in legacy Netscape). However, now that the breaks are so frequent (the last one was this past November) most users know where to go to fix the problem. Info at the link directs them to a userChrome fix that again brings the Firefox internet universe into harmony. https://www.reddit.com/r/firefox/comments/1joylag/tabs_on_bottom_for_firefox_1370/?rdt=45696