[Ubiquity] check-calendar command Quick Add problem

Attempting to use the Quick add feature in check-calendar command results in textbox not registering text, and upon submitting, a page stating:

File Not Found
Firefox can't find the file at chrome://ubiquity/content/m.
* Could the item have been renamed, removed, or relocated?
* Is there a spelling, capitalization, or other typographical error in the address?
* Do you have sufficient access permissions to the requested item?

From here, I can no longer use the Ubiquity upper-left corner box, as it is completely stuck on this page. I am guessing that I must have to restart.