The latest deployJava.js script returns "1.5.0" (from getJREs) on firefox when no java is installed.
Code previously used only on safari is now being called on firefox and Chrome.
introduced by fix to 6877996.
The problem is directly in getJREs() deployjava.js method. it now calls
testUsingPluginsArray() when no version is found using testUsingMimeTypes();
proviously this was only used on Safari browsers.