<html> <head> <style></style></head> <body class='hmmessage'><div dir='ltr'> Yesterday I upgraded my ubuntu 11.10 online to version 12.04. During the upgrade a few messages came by stating the following:<br><br><b>The upgrade will continue but the 'firefox' package may not be in a working state. Please consider submitting a bug report about it.<br>subprocess installed post-installation script returned error exit status 2</b><br><br>Now I`m unable to perform any update/upgrade nor a new package install.<br>How to resolve this issue?<br><br>Dave<br> </div></body> </html>