@RussianNeuroMancer: Icedtea is the openjdk plugin and if I install it here then it does show in firefox about:plugins. So if it doesn't work for you then you have a different problem.
-- [Lucid] sun-java6-plugin not recognized by firefox anymore https://bugs.launchpad.net/bugs/532174 You received this bug notification because you are a member of OpenJDK, which is subscribed to openjdk-6 in ubuntu. Status in “openjdk-6” package in Ubuntu: Invalid Status in “sun-java6” package in Ubuntu: Confirmed Status in “openjdk-6” source package in Lucid: Invalid Status in “sun-java6” source package in Lucid: Confirmed Bug description: In lucid firefox 3.6 doesn't seem to recognize the plugin in /usr/lib/xulrunner-addons/plugins/ anymore, putting the symlink in /usr/lib/mozilla/plugins/ works, so the following part of the java debian/rules should be changed (line 66ff) # FIXME: xulrunner-addons only tested on sid, jaunty, karmic ifeq ($(distribution),Ubuntu) browser_plugin_dirs = xulrunner-addons firefox iceape iceweasel mozilla midbrowser xulrunner browser_plugin_dirs = xulrunner-addons else browser_plugin_dirs = mozilla endif It works fine too if you just remove that. apt-cache policy sun-java6-plugin sun-java6-plugin: Installed: 6.18-2 Candidate: 6.18-2 Version table: *** 6.18-2 0 600 http://archive.canonical.com lucid/partner Packages _______________________________________________ Mailing list: https://launchpad.net/~openjdk Post to : [email protected] Unsubscribe : https://launchpad.net/~openjdk More help : https://help.launchpad.net/ListHelp

