I have a Samsung Galaxy Ace Q running Android 2.3.6. The newly-downloaded Firefox 27.0 browser did a great job when displaying a page using portrait mode. When I rotated the phone to landscape mode, the displayed data went fuzzy and repeated itself three times across the width of the screen. This happened with some other pages I checked, including the "Bookmarks | About Firefox" page. By rotating the phone back and forth, I was also able to get it to mess up the display once in the portrait mode. This characteristic makes Firefox pretty much useless as a browser on this phone. Feature or bug???