Is it possible to run selenium (Firefox) web driver without a GUI?
What you're looking for is a headless-browser.
Yes, it's possible to run Selenium on Firefox headlessly. Here is a post you can follow.
Here is the summary steps to set up Xvfb
#install Xvfbsudo apt-get install xvfb#set display number to :99Xvfb :99 -ac &export DISPLAY=:99 #you are now having an X display by Xvfb