On ubuntu 12.04.4 (precise), I was able to run a *.jnlp from Firefox (26.0+build2-0ubuntu0.12.04.2) only after manually configuring update- alternatives to use javaws from openjdk-7:
# lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04.4 LTS Release: 12.04 Codename: precise # update-alternatives --config javaws There are 2 choices for the alternative javaws (providing /usr/bin/javaws). Selection Path Priority Status ------------------------------------------------------------ 0 /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/javaws 1061 auto mode 1 /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/javaws 1061 manual mode * 2 /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/javaws 1060 manual mode Press enter to keep the current choice[*], or type selection number: 2 # dpkg -S /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/javaws /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/javaws icedtea-netx: /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/javaws icedtea-netx: /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/javaws # apt-cache policy icedtea-netx icedtea-netx: Installed: 1.2.3-0ubuntu0.12.04.3 Candidate: 1.2.3-0ubuntu0.12.04.3 Version table: *** 1.2.3-0ubuntu0.12.04.3 0 500 http://archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages 500 http://archive.ubuntu.com/ubuntu/ precise-security/main amd64 Packages 100 /var/lib/dpkg/status 1.2-2ubuntu1 0 500 http://archive.ubuntu.com/ubuntu/ precise/main amd64 Packages Now it's working fine for me :-) Best regards, Herbert. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/969520 Title: IcedTea Java Web Start fails to open .jnlp file To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/icedtea-web/+bug/969520/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs