Is it possible to get data from Firefox DevTools command line in Linux?

I would like to get the cookies of the POST command (seen on the attached image). I have tried traditional ways using curl and wget, however it is not possible due to authentication (access denied html response received). However, when I open DevTools and I copy the cookies I can use curl the get the html of the website. I plan to write a bash script to get cookies and curl the website.

Please check the image: