Foxyproxy on Ubuntu 9.04 64bit

It seems there's a problem with Foxyproxy latest on 64 bit systems:
ian@ian-laptop:~$ firefox
FoxyProxy settingsDir: /home/ian/.mozilla/firefox/zesv2sh0.default/foxyproxy.xml
Gtk-Message: Failed to load module "canberra-gtk-module": /usr/lib/gtk-2.0/modules/libcanberra-gtk-module.so: wrong ELF class: ELFCLASS64
 

Sorry, false alarm, nothing

Sorry, false alarm, nothing to do with foxyproxy.
Just cleared the Firefox cache and things are back to normal.