在使用新的FirefoxProfile时，使用set_preference方法来配置配置文件，这样就可以单击Save和{}，并且在下载过程中不会被中断。您可以按如下方式设置配置：profile = webdriver.FirefoxProfile()

profile.set_preference("browser.download.dir",os.getcwd());

profile.set_preference("browser.download.folderList",2);

profile.set_preference("browser.helperApps.neverAsk.saveToDisk", "application/csv,application/excel,application/vnd.msexcel,application/vnd.ms-excel,text/anytext,text/comma-separated-values,text/csv,application/vnd.ms-excel,application/vnd.openxmlformats-officedocument.spreadsheetml.sheet,application/octet-stream");

profile.set_preference("browser.download.manager.showWhenStarting",False);

profile.set_preference("browser.helperApps.neverAsk.openFile","application/csv,application/excel,application/vnd.msexcel,application/vnd.ms-excel,text/anytext,text/comma-separated-values,text/csv,application/vnd.ms-excel,application/vnd.openxmlformats-officedocument.spreadsheetml.sheet,application/octet-stream");

profile.set_preference("browser.helperApps.alwaysAsk.force", False);

profile.set_preference("browser.download.manager.useWindow", False);

profile.set_preference("browser.download.manager.focusWhenStarting", False);

profile.set_preference("browser.download.manager.alertOnEXEOpen", False);

profile.set_preference("browser.download.manager.showAlertOnComplete", False);

profile.set_preference("browser.download.manager.closeWhenDone", True);

profile.set_preference("pdfjs.disabled", True);