Script Terminal Command for Firefox

[unsated]

I am trying to write an applescript to run this terminal command:

/Applications/DeerPark.app/Contents/MacOS/firefox -p "default"

What I have so far is

do shell script "/Applications/DeerPark.app/Contents/MacOS/firefox -p "default""

but it gives me the error:

A Identifier can't go after this """.

So is there a different way I need to write the "default"? If I run:

do shell script "/Applications/DeerPark.app/Contents/MacOS/firefox -profilemanager"

That runs fine, but I want to have 2 scripts that will run Firefox with specific profiles, not open up the profile manager.

Any ideas?

EDIT: Someone in another community figured it out. I just needed to capitalize the P and get rid of the quotes:

do shell script "/Applications/Firefox.app/Contents/MacOS/firefox -P default &> /dev/null &"