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
Firefox 3.5 Net Applications, respectively. Due to the January 2010, well-publicized vulnerability in Microsoft's Internet Explorer browser, the German, French, and Australian governments had publicly issued warnings to Internet Explorer users to use alternative browsers, at least until a fix for the security hole was made. The first browser they recommended was Mozilla Firefox, followed by Google Chrome. Even before the release of Firefox 3.0 on June 17, 2008, Firefox 3.1 was in development under the codename "Shiretoko". It was planned to include new interface features such as tab previews, tag auto-completion, HTML 5 <video> tag support, and CSS text shadows. The