The Facebook Pixel: What It Is and How to Use It
If you’re using Facebook ads, there’s one key tool you should start using right away to get the most out of your social ad budget: the Facebook pixel.
14 Jan 2019 ... Even if you're not using Facebook ads yet, you should install the Facebook pixel now. ... You can even track customers across their devices. This lets you see if people tend to see your ads on mobile but switch to a desktop ...