Working with FF4 :-) Rated 5 out of 5 stars
Tested the latest Shelve and it is working fine with FF4.0b8 and
I have attached a 4.* shelve.xpi for ease of use here: http://groups.google.com/group/shelve-firefox-addon?hl=en. It is based on a shelve 1.22 from 2010.12.12.
Get ShelveLogger here: http://silverwav.wordpress.com/shelvelogger/