plugin page keeps coming up: see https://support.mozilla.com/questions/832793 particularly the replies near the end (different replies for different users).

That is a bug with blocklisting plugins that has been fixed.<br /> You can correct this issue by forcing the file blocklist.xml to update or wait until Firefox updates the file.<br /> That update will remove the severity="0" flags in the file that cause the problem. See: * [/questions/832793?page=2#answer-198407] * http://forums.mozillazine.org/viewtopic.php?p=10899869#p10899869 ---- * [https://bugzilla.mozilla.org/show_bug.cgi?id=663722 Bug 663722] - The blocklist output is including severity="0" where it shouldn't be