I'm a Java developer so I have the Java 7 JDK installed on my computer from Oracle (Sun). This obviously comes with the JRE. However, Google Chrome says I need the java plugin and wants me to install a JRE. Why is it not recognizing the one I already have?
Ubuntu. Oracle Java 7. Install the Firefox/Chrome Oracle Java 7 plugin
In a terminal:
Remove the IcedTea plugin, if it has been installed.
Remove a former version of the Java plugin (may or may not be present)
Now you can install the plugin, by creating a symbolic link (you tell Firefox, where the plugin is located).