I am trying to use FF portable as my default browser (Vista Ultimate 64bit). Everything works fine (add-ons, etc), except that if I try to open a _local_ html file I get the error message:
"Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system."
I can open a local file only if firefox is not already running. Below is my FFP ini:
Any help is greatly appreciated. Please keep up the good work.