Firefox 4 only displays 1/2 of page width in Safari Books Online

[le_jawa]

Binary package hint: firefox

On the Safari Books Online site, I opened a book in Firefox 4 (the default package included with 64-bit Natty) and it only showed me about 1/2 or so of the page width (see attached screen shot).

Here's everything I've gathered on the problem so far:
Viewing books from Safari Books Oline in FF4 only renders about 1/2 the page width.
Problem found on 64-bit Natty.
Page displays fully if I take a screen shot of the FF4 window while FF is in focus.
Page displays fully if I wait several seconds.
Problem does not show up in Chromium.
Problem does not show up in FF4 on 32-bit Natty or 32-bit Winders.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: firefox 4.0+nobinonly-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: nvidia wl
Architecture: amd64
Date: Fri Apr 29 13:02:22 2011
EcryptfsInUse: Yes
FirefoxPackages:
 firefox 4.0+nobinonly-0ubuntu3
 flashplugin-installer 10.2.159.1ubuntu1
 adobe-flashplugin N/A
 icedtea-plugin 1.1~20110420-0ubuntu1
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: firefox
UpgradeStatus: Upgraded to natty on 2011-04-22 (7 days ago)

[Paul White (paulw2u)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. We are sorry that we do not always have the capacity to look at all reported bugs in a timely manner. There have been many changes in Ubuntu since that time you reported the bug and your problem may have been fixed with some of the updates. It would help us a lot if you could test it on a currently supported Ubuntu version.

When you test it and it is still an issue, kindly upload the updated logs by running only once:

apport-collect 773444

and any other logs that are relevant for this particular issue.

[Launchpad Janitor (janitor)]

[Expired for firefox (Ubuntu) because there has been no activity for 60 days.]