Your browser relies on your local network connection (often over Wi-Fi), which is routed through your internet service provider, then over the internet to a destination website. Third, you likely also want privacy over the connections from your device to a website. That’s because activity and ad trackers often operate across multiple sites. At one point or another, you might have noticed that advertisements for an item you’ve searched for now appear on several sites you visit. Second, you could mean that you want privacy between sites you visit. More concerning is the scenario where a person in an abusive relationship, for example, may not want someone else in the household to know they’ve searched for help. You might not want the fact that you searched for a gift for someone in your household to be discovered by someone that shares access to your computer. Most people can quickly identify at least four different types of privacy that may be a concern.įirst, privacy may mean privacy from other people with access to your device.
However, the Canvas Permission Prompt is not the only thing that Fingerprinting Protection is doing.You can take several steps to protect your privacy as you browse-but when we use the word privacy, we need to clarify what we mean. This is the most common way to observe this protection. You can choose whether to allow the website to extract your data. If a website tries to extract your data, Firefox will warn you with a prompt in the address bar. It is likely that it may degrade your Web experience so we recommend it only for those willing to test experimental features. Fingerprinting Protection is a different, experimental feature under heavy development in Firefox. This “fingerprint” is potentially used to profile you for targeted content without the use of cookies.įirefox already has an Enhanced Tracking Protection feature that blocks a list of known "fingerprinters" when your privacy settings are set to Standard (the default) or Strict. Some websites, particularly those using HTML5 Canvas, look at this unique combination of factors and assign you a number, or a “fingerprint”, which makes you identifiable across the Web.
Some website technologies, like HTML5 Canvas, can even uniquely identify you based on how your computer draws images. Like other browsers, Firefox’s functionality is influenced by your operating system, hardware, graphics cards, additional software, and even the fonts you install.
Firefox's protection against fingerprinting
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