Apt-Get Install Firefox: No Installation Candidate (Need for Selenium)

I am trying to run a script that uses selenium and every time it tries to open a browser I get an error "unable to find a matching set of capabilities".

when I apt-get install firefox I get an error that there is no installation candidate. Selenium and geckodriver are both the newest versions. I have iceweasel installed but selenium doesn't seem to be using that as the web browser.

My question is, does anyone know how I can fix the apt-get install firefox error to get the latest version in my kali OR am I able to use selenium with iceweasel and if so how do I link them up?