I have 1Password for Windows v126.96.36.1990 with Firefox version 27.0.1.
I also use Chrome & Safari Browsers on my windows system.
When I click on the 1Password Quick-link button on the browser tool bar in Firefox it is Blank (as shown in the attached jpeg image).
However it works fine in Chrome and Safari Browsers (IE too, but I don't use it).
I have removed the plug-in, restarted FF, reinstalled the plug-in, restarted and it is still blank.
Thank you in advance.