Auto download PDF in Firefox

Question

I want Firefox to directly download the PDF files instead of showing them in browser. I used following settings

FirefoxProfile firefoxProfile = new FirefoxProfile();
firefoxProfile.setPreference("browser.download.folderList", 2);
firefoxProfile.setPreference("browser.download.manager.showWhenStarting", false);
firefoxProfile.setPreference("browser.download.dir", "c:\\tmp");
firefoxProfile.setPreference("browser.helperApps.neverAsk.saveToDisk", "application/pdf");
WebDriver driver = new FirefoxDriver(firefoxProfile);
// Its just a sample URL 
driver.get("http://www.energy.umich.edu/sites/default/files/pdf-sample.pdf");

On about:config page I can see that this setting are successfully reflected also the response type is application/pdf.

When Webdriver launches Firefox I can see following option.

It should be "Save File".

Still Firefox is showing PDF in browser. I am using Firefox 29.0.1, does the preference values have changed?

Answer 1

The same as above for a remote Firefox Webdriver using Python Selenium:

from selenium import webdriver

from selenium.webdriver.firefox.options import Options

options = Options()
profile = webdriver.FirefoxProfile()
profile.set_preference("browser.download.folderList", 2)
profile.set_preference("browser.download.manager.showWhenStarting", False)
profile.set_preference("browser.download.dir", "/data");
profile.set_preference("browser.helperApps.neverAsk.saveToDisk", "application/pdf");
profile.set_preference("pdfjs.disabled", True)
profile.set_preference("plugin.scan.Acrobat", "99.0")
profile.set_preference("plugin.scan.plid.all", False)

driver = webdriver.Remote(
    browser_profile=profile,
    command_executor='http://localhost:4444/wd/hub',
    desired_capabilities=options.to_capabilities()
)
driver.get("https://www.ti.com/lit/ds/symlink/sa555.pdf");