Comment 1 for bug 444449

Binary package hint: firefox-3.5

How to reproduce :
go to google reader, read normal feeds (for example reddit)
scroll up and down while the mouse pointer is on the description of the items.

Encountered Behavior:
very slow scrolling. Scrolling down by 1 screen takes about 1 min. While scrolling, the window becomes grayed and you can't change tabs/do anything. It will continue scrolling down, being gray, after I finished scrolling my mouse. CPU flies up to 100%

I tried the following :
- launching firefox with a new empty profile. This does not help at all.
- disabling smooth scrolling. This helps, scrolling is faster (but still behind the mouse input), the window is not grayed. The cpu still fires up to 100%. The feeling is like when you drop frames from a video (very irregular scrolling)

ProblemType: Bug
Architecture: i386
Date: Tue Oct 6 19:25:21 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: nvidia
Package: firefox 3.5.3+build1+nobinonly-0ubuntu3
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/zsh
ProcVersionSignature: Ubuntu 2.6.31-11.36-generic
SourcePackage: firefox-3.5
Uname: Linux 2.6.31-11-generic i686