if you (like me) want to continue using radialcontext-mz 1.1 under Firefox 3.5, you could.
just tweak it that way:
* download the xpi
* open it with a zip-program of your choice
* edit install.rdf with the editor of your choice
* change line 28 from em:maxVersion=”3.0.*” to em:maxVersion=”3.5.*”
* put it back in the zip (xpi)
* start Firefox
* drop [...]

