This joke page was linked in another thread: http://www.downloadmoreram.com/
When I open it in FF6 under Windows 7, the top half of the display is semi-transparent. I can see my desk top (or whatever windows are open behind Firefox) through the page content, and the text in this part of the page is consequently difficult to read. (It does not happen when I view the page in IE or Chrome.)
If I scroll down, the translucent area scrolls normally and the lower part of the page apparently displays correctly.
I have also noticed that if I load the page into a FF window that is not maximized, and is not too big, this effect does not occur, although it returns if I stretch the FF window beyond a certain height, or if I scroll down a little way, so it seems as though there is a point, some distance down the page, that must appear in the display in order to cause stuff above it to turn translucent. I am guessing that there is something in the CSS used on the page that Firefox is somehow rendering weirdly, and that the effect is also connected with the “glassy” window borders used by Windows 7.
Actually, it is not just this page. I have also recently seen a similar unwanted translucency (making text difficult to read) in a certain Flash app that opened in its own Firefox window. I do not have the URL for that to give you though, and until seeing it on the downloadmoreram.com page, I assumed it was a Flash issue rather than a Firefox one.
Is anyone else experiencing this? Is there anything to be done except to wait for the Firefox people to discover the issue and get it fixed?