Thank you for taking the time to report this bug and helping to make Ubuntu better. Reviewing your dmesg attachment in this bug report it seems that there is a problem with your hardware. I recommend performing a back up and then investigating the situation. Measures you might take include checking cable connections and using software tools to investigate the health of your hardware. In the event that is is not in fact an error with your hardware please set the bug's status back to New. Thanks and good luck!
** Tags added: hardware-error ** Changed in: firefox (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/779055 Title: package firefox 4.0 nobinonly-0ubuntu3 failed to install/upgrade: leitura curta em cópia de buffer para mecanismo dpkg-deb durante './usr/lib/firefox-4.0.1/libxul.so' Status in “firefox” package in Ubuntu: Invalid Bug description: Binary package hint: firefox I can't install new atualizations in my operational sistem ProblemType: Package 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 i686 AptOrdering: firefox: Install smbclient: Install firefox: Configure firefox-globalmenu: Configure smbclient: Configure Architecture: i386 Date: Fri May 6 21:57:08 2011 ErrorMessage: leitura curta em cópia de buffer para mecanismo dpkg-deb durante './usr/lib/firefox-4.0.1/libxul.so' FirefoxPackages: firefox 4.0+nobinonly-0ubuntu3 flashplugin-installer N/A adobe-flashplugin 10.2.159.1-0natty1 icedtea-plugin N/A InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429) SourcePackage: firefox Title: package firefox 4.0+nobinonly-0ubuntu3 failed to install/upgrade: leitura curta em cópia de buffer para mecanismo dpkg-deb durante './usr/lib/firefox-4.0.1/libxul.so' UpgradeStatus: Upgraded to natty on 2011-05-07 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/779055/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp