Rated 5 out of 5 stars

Here's an AutoCopy xpi with a modified install.rdf. The maxVersion property is set to "3.6.*" as described by mk10001. Works perfectly for me -- hope it does for you as well!

http://www.mediafire.com/file/te2mtnkmthm/autocopy-for-3.6.xpi

And of course, thanks to Mr. Lidman for this excellent extension.

This review is for a previous version of the add-on (1.0).