Apparently, I have OpenJDK 6 JRE (openjdk-6-jre 6b27-1.12.6-1ubuntu0.12.04.2) and 7 JRE (openjdk-7-jre 7u25-2.3.10-1ubuntu0.12.04.2) installed in parallel – I don't know why I have both of them, I can't remember installing any of them manually.
However, the Firefox Java plugin is occasionally reported to be out of date by some websites, and it seems to me that it relies on JRE 6. How can I make Firefox use the newer version? Removing JRE 6 seems like a bad idea; when I attempted to do so in synaptic it appeared to me that a lot of software still relies on the older JRE, since removing it would have removed programs like
jedit as well.
Do I mix up stuff? I'm not even sure how the FF plugin interferes with the OpenJDK JRE's.
Having tried even more, the problem persists. Using
update-alternatives --config java, I see that the default Java version (with status "manual mode") is already set to Java 7, and
java -version returns "1.7.0_25". The file
/usr/lib/jvm/java-7-openjdk-i386/jre/lib/i386/IcedTeaPlugin.so exists, but still Firefox shows the Java 6 plugin when looking at
To sum it up:
How do I make Firefox use the IcedTea plugin belonging to the default Java version?