Using Firefox as Eclipse's external browse

Question

My Eclipse will fires a new Firefox instance and refused by Firefox when I am running debug.

I have done some research and configure Eclipse external browser parameters as followings

-p debug -no-remote -new-tab %URL%

But it still fire a new instance of Firefox instead of opening the link in a new tab on existing opened browser.

Any idea I could make it works?

Note that I am running on Windows.