sudo apt-get build-dep icedtea-java7-pluginsudo apt-get -b source icedtea-java7-plugin icedtea-java7-bin icedtea-java7-jre icedtea-java7-jdksudo dpkg -i icedtea-java7-*deb
Java webbrowser plugin for AMD64 Ubuntu
There is now (finally) a fix for Java applet support on AMD64 Ubuntu. Try the following:Thanks to Fabien Lusseau for the tip in his comment here