areas damaged by alt text popups are not redrawn properly if the window is scrolled

Binary package hint: firefox-3.5

Steps to reproduce:

  1. Load https://launchpad.net/ubuntu in Firefox
  2. Mouse over "Branches" and wait for the tooltip to appear
  3. Before the tooltip disappears, use the mouse wheel to scroll down

Observed behavior:

  The tooltip will disappear. The area of the page where the tooltip was will remain grey and not be redrawn.

Expected behavior:

  The tooltip should disappear, as it does. The area of the page affected should be redrawn.

ProblemType: Bug
Architecture: i386
Date: Fri Nov 6 22:23:23 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: fglrx
Package: firefox 3.5.4+nobinonly-0ubuntu0.9.10.1
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US.UTF-8
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic-pae
SourcePackage: firefox-3.5
Uname: Linux 2.6.31-14-generic-pae i686