After updating to Firefox 8.0, at many websites yellow triangle are seen, they change there place as a move my mouse pointer. Also at many webpages letters are not totally visible, when I take my mouse pointer there, only then it become visible. :( I checked on Google Chrome, but there is no such problem seen. I have taken few screen shots, may be they help. [https://picasaweb.google.com/kishan777/Firfox8Problem?authuser=0&authkey=Gv1sRgCNDmltrE-p_naQ&feat=directlink Screenshots]