Hi,
I am Bradley Witham. I have noticed from few days that SEO quake is not working on Mozilla but working with chrome.
Please report a bug here if you think it is Firefox-related https://bugzilla.mozilla.org/enter_bug.cgi#h=dupes|Firefox
Please report a bug here https://webcompat.com/ if you think SEO Quake is using proprietary Chrome features instead of web standards.