Proxifier and Sandboxie

[M4xx]

Hello,
to make my system a bit more secure I am using a combination of proxifier aswell sandboxie.
Proxifier has the rule to tunnel firefox.exe. Firefox itself runs in the sandbox.
Since Firefox is running in the sandbox proxifier cant recognize it anymore.

Sure I could just run proxifier in the sandbox to but thats not how I want it.
Is there anotherway beside using firefox's own proxy system?