Control Firefox Download Prompt Using Selenium and Python

Question

Here is my code :

from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait

profile = webdriver.FirefoxProfile()
profile.set_preference("browser.download.folderList", 2);
profile.set_preference("browser.download.manager.showWhenStarting", False)
profile.set_preference("browser.download.dir", "/home/ripundeep/Desktop/Python Challenges /")    
profile.set_preference("browser.helperApps.alwaysAsk.force", False)
profile.set_preference("browser.download.manager.alertOnEXEOpen", False)
profile.set_preference("browser.download.manager.focusWhenStarting", False)
profile.set_preference("browser.download.manager.useWindow", False)
profile.set_preference("browser.download.manager.showAlertOnComplete", False)
profile.set_preference("browser.download.manager.closeWhenDone", False)
profile.set_preference("browser.helperApps.neverAsk.openFile","text/csv")
profile.set_preference("browser.helperApps.neverAsk.saveToDisk","text/csv")
profile.update_preferences()

driver = webdriver.Firefox(firefox_profile=profile)
driver.get(url)
driver.find_element_by_css_selector("#id").send_keys("keyword")
WebDriverWait(driver, 1, poll_frequency=0.1).until(lambda drv:  len(drv.find_elements_by_css_selector("#ctl00_ContentPlaceHolder1_btnSubmit")) > 0)
driver.find_element_by_css_selector("#submitid").click()
driver.find_element_by_css_selector("#DownloadLinkId").click()

I want to stop firefox to show me download prompt and save it automatically and I have tried all possible solutions but didn't work. Please help.

1st solution is in code.... by changing profile of firefox using selenium. 2nd solution, I have checked "Don't ask me again" when it prompted and then re-run the code but same position occur. 3rd solution is go through the changes I can make in firefox preferences or other settings manually. But eventually nothing didn't work. As I run the code prompt ocuur. — Ripundeep Gill
– Ripundeep Gill, Commented Jul 19, 2016 at 12:43

alecxe · Accepted Answer · 2016-07-19 13:24:19Z

4

I remember providing more mime-type variants usually helped to solve issues like this:

mime_types = [
    'text/plain', 
    'application/vnd.ms-excel', 
    'text/csv', 
    'application/csv', 
    'text/comma-separated-values', 
    'application/download', 
    'application/octet-stream', 
    'binary/octet-stream', 
    'application/binary', 
    'application/x-unknown'
]
profile.set_preference("browser.helperApps.neverAsk.saveToDisk", ",".join(mime_types))

I also think you should not be calling profile.update_preferences().

Aside from that, here are the steps to see what mime-type Firefox detects:

manually download the file with Firefox checking the "automatically save this file type" checkbox
open Help -> Troubleshooting Information
locate the "Profile Folder" button, click it
inside the profile folder locate the mimeTypes.rdf file
open the file in a text editor and look for the mimetypes mentioned there - the XML node attribute values that start with urn:mimetype
use the mimetypes you found in the browser.helperApps.neverAsk.saveToDisk comma-separated value

edited Jul 19, 2016 at 13:24

answered Jul 19, 2016 at 12:52

alecxe

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2 Comments

alecxe Over a year ago

@user3805995 updated with instructions on how to see what mime-type firefox thinks this file is of. Hope that helps.

kevinsa5 Over a year ago

FYI, mimeTypes.rdf may not exist anymore. handlers.json is a possible place to look

cruisepandey · Accepted Answer · 2021-09-29 07:23:07Z

You can possibly have this firefox profile, if you are using Python then you could this :

profile = FirefoxProfile()
profile.set_preference("browser.download.panel.shown", False)
profile.set_preference("browser.helperApps.neverAsk.openFile","text/csv,application/vnd.ms-excel")
profile.set_preference("browser.helperApps.neverAsk.saveToDisk", "application/msword, application/csv, application/ris, text/csv, image/png, application/pdf, text/html, text/plain, application/zip, application/x-zip, application/x-zip-compressed, application/download, application/octet-stream");
profile.set_preference("browser.download.manager.showWhenStarting", False);
profile.set_preference("browser.download.manager.alertOnEXEOpen", False);
profile.set_preference("browser.download.manager.focusWhenStarting", False);
profile.set_preference("browser.download.folderList", 2);
profile.set_preference("browser.download.useDownloadDir", True);
profile.set_preference("browser.helperApps.alwaysAsk.force", False);
profile.set_preference("browser.download.manager.alertOnEXEOpen", False);
profile.set_preference("browser.download.manager.closeWhenDone", True);
profile.set_preference("browser.download.manager.showAlertOnComplete", False);
profile.set_preference("browser.download.manager.useWindow", False);
profile.set_preference("services.sync.prefs.sync.browser.download.manager.showWhenStarting", False);
profile.set_preference("pdfjs.disabled", True);
profile.set_preference("browser.download.dir", "C:\\Users\\***\\****\\Desktop\\Automation")
driver = webdriver.Firefox(firefox_profile = profile, executable_path = "Full file path to gecko driver.exe")

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