Firefox upgrade and Bookmarks Synchronizer 1.0.1

Once you upgrade to Firefox 1.0.4, Google Bookmarks Synchronizer extension 1.0.1 stopped working...

to reactivate the operation of this fantastic extension, type in the address field the following string:

about:config

this allows you to access the configuration parameters.
Modify the following parameter:

bookmarksftp.browsercount integer 1

and restart the browser.