Rated 5 out of 5 stars

Addresscontext .0.8.1 works fine for me with TB 5.0 on Windows 7. You have to bump the rdf file of course, but the real trick is to install the extension MoreFunctionsForAddressBook .0.6.4.1. That seems to heal Addresscontext.
I couldn't live without this extension and discovered this synergy by accident.

This user has a previous review of this add-on.