-> invalid bugzilla is not for end-support. Please ask in the newsgroups and/or on irc.mozilla.org If it works on the page you must doing something wrong.. And this is never critical since this is no crash, dataloss or memory leak.
it also does not work on the page build 2002053012
I'm sorry, the switch Edit\preferences\advanced\Software Installation\ Enable Software installation was turned off. Marked bug report as invalid.