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print.print_paper_width doesn't works

kishank1101
kishank1101
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I have been trying to print the webpage as PDF. I am trying to change the page height and width, but this code is not working. When I manually enter the value of print.print_paper_width and save in about:config it works. Can someone tell me whats wrong. This is what I am trying:


from selenium.webdriver.firefox.options import Options as FirefoxOptions from selenium import webdriver options = FirefoxOptions() options.add_argument("--headless") FFprofile = webdriver.FirefoxProfile() FFprofile.set_preference('print.always_print_silent', True) FFprofile.set_preference('print.print_to_file', True)

FFprofile.set_preference('print.print_paper_width', '3.7')

FFprofile.set_preference('print.print_to_filename', 'filepath')

driver = webdriver.Firefox(FFprofile,options=options) driver.get('filepath') driver.execute_script("window.print()")

I have been trying to print the webpage as PDF. I am trying to change the page height and width, but this code is not working. When I manually enter the value of print.print_paper_width and save in about:config it works. Can someone tell me whats wrong. This is what I am trying: from selenium.webdriver.firefox.options import Options as FirefoxOptions from selenium import webdriver options = FirefoxOptions() options.add_argument("--headless") FFprofile = webdriver.FirefoxProfile() FFprofile.set_preference('print.always_print_silent', True) FFprofile.set_preference('print.print_to_file', True) FFprofile.set_preference('print.print_paper_width', '3.7') FFprofile.set_preference('print.print_to_filename', 'filepath') driver = webdriver.Firefox(FFprofile,options=options) driver.get('filepath') driver.execute_script("window.print()")

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Jonathan Watt
Jonathan Watt
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This is a forum to support Firefox end users so not really the best place to get help on this. I can possibly help though if you can file an issue at https://bugzilla.mozilla.org/ in the 'Core' product and in the 'Printing: Setup' component. The Firefox core code for handling settings is currently in flux, and this use case is probably even more broken in the Firefox 82/83 code. We can try to make this work though.