Rational Functional Tester Failed to enable the browser

Question

I'm trying to enable the RFT test environment on Mozilla firefox browser but always i get the following error message
CRFCN0792E: Failed to enable the browser. Browser location is C:\Program Files (x86)\Mozilla Firefox.

Answer 1

Which version of Firefox is it ?
Also Check if you have more than one instance of Firefox running (firefox.exe in the task manager).