Error: $ is not defined

[geeknik]

In the error console of Firefox 3.7a2pre, I see this when I try try to invoke an automatic upgrade in the router's control panel:

Error: $ is not defined
Source File: http://10.0.0.254/system_firmware_check.php
Line: 257

The upgrade button is missing too. Oops. :)

[geeknik]

Well, the button is back where it should be, the error is gone as well, so I think this is a Firefox 3.7a2pre issue. Please disregard. :)