[ubuntu] Install xulrunner on Ubuntu 12.10?

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http://ubuntuforums.org – I believe that I need to install xulrunner. But I'm running 12.10. When I try to install xulrunner-1.9.2 I get the following error: Code: jack@probook:~$ sudo apt-get install xulrunner-1.9.2 Reading package lists... Done Building dependency tree      Reading state information... Done Package xulrunner-1.9.2 is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'xulrunner-1.9.2' has no installation candidate Launchpad does have xulrunner listed under 1 (Hardware)