With the multiple JRE RFE it is now possible to make JREs available to third party applications. This is done by installing them into a set of well known directories (system and user specific ones). Since users will rarely know which directory to install in to make Java known to the system we should offer an option to automatically install into these directories. An install done by root should install into the system directories, an install done by a non root user into his home directory.
This RFE will make it possible for mozilla to find a JRE installed via the shell extractor.