This scripts opens all the given thread's images in chromium, for those who like to live dangerously.

fullscreen4chan.py

#!/usr/bin/env python3

import requests, sys, subprocess
from bs4 import BeautifulSoup

def main():
    if len(sys.argv) < 2:
        print("Usage {0} thread_url".format(sys.argv[0]))
        return


    soup = BeautifulSoup(requests.get(sys.argv[1]).text)

    with open('/dev/null', 'w') as outfile:
        images = soup.find_all("a", {"class":"fileThumb"})
        for (index, image) in enumerate(images): 
            print("Opening {0}/{1}".format(index+1, len(images)))
            subprocess.call(["chromium", "--incognito", "http:"+image["href"]], stdout=outfile, stderr=outfile)

if __name__ == "__main__":
    main()