title: Disable firefox save as dialog-selenium
body: <p>I am web scraping with selenium and whenever i try to download i file the firefox download/save as file pops up however, even If i apply <code>profile.set_preference('browser.helperApps.neverAsk.saveToDisk', "application/csv")</code>, it still doesnt work, I have tried everyt .csv related MIME but doesn't work, is it possible to either click <code>save as</code> radio button and then click <code>ok</code> on the dialog or disable it entirely. </p>