Bug#559316: iceweasel: Terribly slow and stuttering scrolling

[Felix Homann]

Package: iceweasel
Version: 3.5.5-1
Severity: important


The title tells it all: Scrolling through web pages is terribly slow on 
many pages.
In fact, on so many pages, that I set the severity of this bug to 
"important":
I can't use Iceweasel for daily browsing anymore!

Here's a couple of affected URLs:

http://www.msavisuals.com/webcam_piano
http://www.spiegel.de/netzwelt/gadgets/0,1518,664341,00.html
http://twitter.com/

I can give you lots more if you like.

This started either with an upgrade of libgtk2.0-0 or with the upgrade 
to iceweasel-> 3.5.x.
It's the same on amd64 and on x86, Nvidia and ATI/AMD cards. I'm 
experiencing this issue on
3 different machines.

Kind regards,

Felix

-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 
'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.31-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages iceweasel depends on:
ii  debianutils                   3.2.2      Miscellaneous utilities 
specific t
ii  fontconfig                    2.6.0-4    generic font configuration 
library
ii  libc6                         2.10.2-2   GNU C Library: Shared libraries
ii  libglib2.0-0                  2.22.3-1   The GLib library of C routines
ii  libgtk2.0-0                   2.18.4-1   The GTK+ graphical user 
interface
ii  libnspr4-0d                   4.8.2-1    NetScape Portable Runtime 
Library
ii  libstdc++6                    4.4.2-3    The GNU Standard C++ Library v3
ii  procps                        1:3.2.8-2  /proc file system utilities
ii  psmisc                        22.8-1     utilities that use the proc 
file s
ii  xulrunner-1.9.1               1.9.1.5-2  XUL + XPCOM application runner

iceweasel recommends no packages.

Versions of packages iceweasel suggests:
ii  latex-xft-fonts      1.6.4-1             TrueType versions of some 
TeX font
ii  libkrb53             1.6.dfsg.4~beta1-13 Transitional library 
package/krb4
ii  mathematica-fonts [t 10                  Installer of Mathematica fonts
pn  mozplugger           <none>              (no description available)
ii  ttf-mathematica4.1   10                  transitional dummy package
ii  xfonts-mathml        3                   Type1 Symbol font for MathML
pn  xprint               <none>              (no description available)
ii  xulrunner-1.9.1-gnom 1.9.1.5-2           Support for GNOME in 
xulrunner app

-- no debconf information