Still usable... #2 Rated 2 out of 5 stars

Support: 0 stars
Function: 5 stars

As of ff13 this add-on can not be installed and activated, even with the add-on compatibility reporter extension installed and activated.
With a hack in the install.rdf-file I was able to dupe ff. On my systems it still works.

You can finde my hacked *.xpi-file here:
http://hpk.homepage.bluewin.ch/download/firefox.html or here:
http://hpk.homepage.bluewin.ch/download/mozilla/unhide-menubar-fx.html

Unofficial Version until FF 3.7.* Rated 1 out of 5 stars

Support: 0 stars
Function: 5 stars

As this Add-on is not supported anymore by its author and also the file suggested bei kHoeTh1sW0rks is not available no longer I tryed something myself.
I created a version 0.0.14.hpk which works flawlessly on my systems under WinXP SP3.
It is available in a Zip-file under the following link:
http:hpk.homepage.bluewin.ch/download/firefox.html