My HUD does not work for Firefox, even after a fresh install of 12.10 the problem persists. When I try to use the HUD I only get results from the Indicator applet.

It does however, work for other applications, such as Chrome and GIMP.
When I attempted to start Firefox from the terminal I recieved these errors:
I created the missing folders but they remain empty.

Webapps are not working correctly either, gmail, facebook etc frequently telling me I have multiple messages when I have none.

I think the two problems may be related. (I could be wrong!)
Any help would be greatly appreciated.