I am able to set preferences for Firefox as below. set_preference = profile.set_preference set_preference("network.http.response.timeout", 30) set_preference("media.autoplay.enabled", False) set_preference("browser.cache.memory.enable", False) set_preference("browser.cache.disk.enable", False) set_preference("network.proxy.type", 2) set_preference("network.proxy.autoconfig_url", pac_url) set_preference("network.proxy.autoconfig_url.include_path", True) But I need to setup for Chrome as well.. Can any one assist me how to do ? Thanks Hafsa. Continue reading...