Bug#620677: [iceweasel] animated GIF showing a single frame flashes

[Francesco Muzio]

Package: iceweasel
Version: 3.5.18-1
Severity: normal

Last upgrade of iceweasel on 'testing' introduces this bug:
some animated GIF showing a single frame flashes

for example try this
http://forum.adunanza.net/images/smilies/whistling.gif
with this version of iceweasel


--- System information. ---
Architecture: i386
Kernel: Linux 2.6.32

Debian Release: wheezy/sid
500 testing ftp.it.debian.org

--- Package information. ---
Depends (Version) | Installed
===========================================-+-===============
libc6 (>= 2.3.6-6~) | 2.11.2-11
libgcc1 (>= 1:4.1.1) | 1:4.5.2-4
libgdk-pixbuf2.0-0 (>= 2.22.0) | 2.22.1-1+sid1
libglib2.0-0 (>= 2.16.0) | 2.28.2-1
libgtk2.0-0 (>= 2.10) | 2.24.3-1~sid1
libnspr4-0d (>= 1.8.0.10) | 4.8.7-2
libstdc++6 (>= 4.1.1) | 4.5.2-4
fontconfig | 2.8.0-2.1
procps | 1:3.2.8-10
debianutils (>= 1.16) | 3.4.4
xulrunner-1.9.1 (>= 1.9.1.18) | 1.9.1.18-1
libasound2 (>> 1.0.18) | 1.0.23-2.1
libatk1.0-0 (>= 1.12.4) | 1.32.0-1+sid1
libbz2-1.0 | 1.0.5-6
libc6 (>= 2.3.6-6~) | 2.11.2-11
libcairo2 (>= 1.8.8) | 1.10.2-6
libdbus-1-3 (>= 1.0.2) | 1.4.6-1
libfontconfig1 (>= 2.8.0) | 2.8.0-2.1
libfreetype6 (>= 2.2.1) | 2.4.4-1
libgcc1 (>= 1:4.1.1) | 1:4.5.2-4
libgdk-pixbuf2.0-0 (>= 2.22.0) | 2.22.1-1+sid1
libglib2.0-0 (>= 2.24.0) | 2.28.2-1
libgtk2.0-0 (>= 2.24.0) | 2.24.3-1~sid1
libhunspell-1.2-0 (>= 1.2.11) | 1.2.14-4
libjpeg62 (>= 6b1) | 6b1-1
libmozjs2d (= 1.9.1.18-1) | 1.9.1.18-1
libnspr4-0d (>> 4.7.1-1) | 4.8.7-2
libnss3-1d (>= 3.12.6) | 3.12.9-2
libpango1.0-0 (>= 1.14.0) | 1.28.3-1+squeeze2
libpng12-0 (>= 1.2.13-4) | 1.2.44-2
libreadline6 (>= 6.0) | 6.1-3
libsqlite3-0 (>= 3.6.0) | 3.7.5-1
libstartup-notification0 (>= 0.10) | 0.10-1
libstdc++6 (>= 4.1.1) | 4.5.2-4
libx11-6 | 2:1.4.1-5
libxrender1 | 1:0.9.6-1
libxt6 | 1:1.1.1-1
zlib1g (>= 1:1.1.4) | 1:1.2.3.4.dfsg-3


Package's Recommends field is empty.

Suggests (Version) | Installed
=====================================-+-===============
ttf-lyx | 2.0.0~rc1-1
OR latex-xft-fonts | 1.6.7-1
xfonts-mathml | 4
ttf-mathematica4.1 |
xprint |
mozplugger |
libgssapi-krb5-2 | 1.8.3+dfsg-4
OR libkrb53 | 1.8.3+dfsg-4
libdbus-glib-1-2 (>= 0.78) | 0.92-1
libgconf2-4 (>= 2.27.0) | 2.28.1-6
libgnome2-0 (>= 2.17.3) | 2.30.0-1
libgnomevfs2-0 (>= 1:2.17.90) | 1:2.24.4-1
libgnomeui-0 | 2.24.3-1
libcanberra0 | 0.24-1



--- Output from package bug script ---

-- Extensions information
Name: DOM Inspector
Location: 
/usr/share/mozilla/extensions/{ec8030f7-c20a-464f-9b0e-13a3a9e97384}/inspector at mozilla.org 

Package: xul-ext-dom-inspector
Status: enabled

Name: Default
Location: 
/usr/lib/iceweasel/extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}
Package: iceweasel
Status: enabled

Name: Italiano (IT) Language Pack
Location: /usr/lib/iceweasel/extensions/langpack-it at firefox.mozilla.org
Package: iceweasel-l10n-it
Status: enabled

-- Plugins information
Name: DivX Browser Plug-In
Location: /usr/lib/mozilla/plugins/gecko-mediaplayer-dvx.so
Package: gecko-mediaplayer
Status: enabled

Name: IcedTea NPR Web Browser Plugin (using IcedTea6 1.8.7 (6b18-1.8.7-2))
Location: /usr/lib/jvm/java-6-openjdk/jre/lib/i386/IcedTeaPlugin.so
Package: icedtea6-plugin
Status: enabled

Name: QuickTime Plug-in 7.6.4
Location: /usr/lib/mozilla/plugins/gecko-mediaplayer-qt.so
Package: gecko-mediaplayer
Status: enabled

Name: RealPlayer 9
Location: /usr/lib/mozilla/plugins/gecko-mediaplayer-rm.so
Package: gecko-mediaplayer
Status: enabled

Name: Skype Buttons for Kopete
Location: /usr/lib/mozilla/plugins/skypebuttons.so
Package: kopete
Status: enabled

Name: Windows Media Player Plug-in
Location: /usr/lib/mozilla/plugins/gecko-mediaplayer-wmp.so
Package: gecko-mediaplayer
Status: enabled

Name: mplayerplug-in is now gecko-mediaplayer 0.9.9.2
Location: /usr/lib/mozilla/plugins/gecko-mediaplayer.so
Package: gecko-mediaplayer
Status: enabled


-- Addons package information
ii gecko-mediapla 0.9.9.2-1 Multimedia plug-in for Gecko browsers
ii icedtea6-plugi 6b18-1.8.7-2 web browser plugin based on OpenJDK and Iced
ii iceweasel 3.5.18-1 Web browser based on Firefox
ii iceweasel-l10n 1:3.5.16+debia Italian language package for Iceweasel
ii kopete 4:4.4.5-2 instant messaging and chat application
ii xul-ext-dom-in 1:2.0.9-1 tool for inspecting the DOM of pages in Icew