Does not read or write

I am having trouble with FireGpg.

I created a brand new profile, and installed 0.7.10 from your site (attempting to install from mozilla claims it is for an older version of firefox).

Reading a PGP encrypted message gives me this error:
TypeError: this.FireGPGGPGAccess is undefined

Then an overlay shows up at the bottom and the details there say:
There is a problem with Gmail's integration of FireGPG. Please check the status page and/or report the following errors:

checkDock/message chrome://firegpg/content/Mime/decoder.js 881 resultTest is undefined

Trying to compose a message (plain text window) gives me this error:
There is a problem with Gmail's integration of FireGPG. Please check the status page and/or report the following errors:

checkDock/compose chrome://firegpg/content/Webmails/Gmail/cgmail2.js 669 children[0] is undefined

checkDock/compose chrome://firegpg/content/Webmails/Gmail/cgmail2.js 669 children[0] is undefined

FF 3.6.3, Mac PPC, 10.5.8, brand new profile, no other extensions, no changes to default settings.