Firefox Focus enable the Tracking Protection feature inside the browser preferences manually. Users can also view types of trackers on a page by tapping on the shield icon next to the URL bar. A panel will pop-up and shows what kind of trackers are on that page: ad trackers, analytics trackers, social trackers or content trackers. Firefox Focus can be set as content-blocker in the Safari web browser options. After activating the Safari integration in the Firefox Focus settings, it will disable trackers automatically in the background when browsing using the Safari browser. Pressing the trash icon while browsing will delete all
Web Components are inside a template will not be fetched until the template is stamped out. HTML Templates are supported in Google Chrome, Mozilla Firefox, Microsoft Edge, Safari, and Opera. Support for an early version of Custom Elements and Shadow DOM, known as "v0", is present in some Blink-based browsers like Google Chrome and Opera and is in Mozilla Firefox (requires a manual configuration change). The newer Custom Elements and Shadow DOM "v1" APIs are being implemented in Safari 10, Google Chrome (53.0.2785), and under development in Mozilla Firefox. Microsoft Edge did not implement Custom Elements or Shadow DOM. Backward compatibility with