ports/126265: Firefox 3 has problem displaying some background images

[Kevin Dorne]

>Number:         126265
>Category:       ports
>Synopsis:       Firefox 3 has problem displaying some background images
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Aug 05 10:40:01 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     Kevin Dorne
>Release:        7.0-RELEASE
>Organization:
>Environment:
FreeBSD piccolo.xxxxxx.xxx 7.0-RELEASE FreeBSD 7.0-RELEASE #0: Sun Feb 24 19:59:52 UTC 2008     root at logan.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
>Description:
When displaying web pages with particular background images, the browser window ends up being overlaid with other parts of the screen.  It happens with or without extensions installed, with a freshly created profile.

An example of a very simple page with repeating background is here:

http://img171.imageshack.us/img171/2972/brokenbrowseryb1.png

This problem appeared in Firefox 3; it was not present in Firefox 2.

I am using the radeon driver, board name M10 NT [FireGL Mobility T2].
>How-To-Repeat:
It's possible to create a very simple HTML document, containing a background image.  If the image is small enough to tile, then the problem will show up -- but, it only happens with certain images.  I have found an image that causes this problem; it can be found here:

http://img401.imageshack.us/img401/3184/xxak3.jpg

I originally thought it happened with any 8-bit JPEG, but when I created one, I couldn't reproduce the problem.
>Fix:
No fix, but a workaround is to install the Web Developer toolbar, and select Images->Hide Background Images.

>Release-Note:
>Audit-Trail:
>Unformatted: