Mozilla is planning on blocking Fingerprinters by default in Firefox 72, which is slated to be released in January 2020. The browser will automatically block Fingerprinter on any sites that you visit through its Enhanced Tracking Protection feature. Firefox 72 will be released on January 1, 2020. It is important to note that enabling fingerprinter blocking could cause issues with sites that utilize them, such as the page not displaying properly or trouble interactive with it. The blocking is part of Mozilla’s plan to use the browser’s Enhanced Tracking protection feature.
Source: https://www.bleepingcomputer.com/news/security/mozilla-to-block-fingerprinters-by-default-in-firefox-72/