Firefox 88 clamps down on window.Facebook Container for Firefox is a free add-on that will allow you to control and quarantine your web activity from Facebook.The latest edition of Firefox finally marks the end of support for FTP in the browser, and most users who do not have hardware-accelerated WebRender will use software WebRender instead. In total there are four different Sec-Fetch-* headers: Dest, Mode, Site, and User which together allow web applications to protect themselves and their end users against. 'Inspecting Sec-Fetch-* Headers ultimately allows the web application server to reject or also ignore malicious requests because of the additional context provided by the Sec-Fetch-* header family. 'The HTTP request header Sec-Fetch-Site allows the web application server to distinguish between a same-origin request from the corresponding web application and a cross-origin request from an attacker-controlled website,' Mozilla said. But when you click on the 'Continue with Facebook' button to sign in, SmartBlock reacts by quickly unblocking the Facebook login script just in time for the sign-in to proceed smoothly.'įirefox 90 will also support Fetch Metadata Request Headers to allow web apps to defend against some cross-site attacks. Initially, Facebook scripts are all blocked, just as before, ensuring your privacy is preserved. 'Now, SmartBlock 2.0 in Firefox 90 eliminates this login problem. 'Prior to Firefox 90, if you were using a private browsing window, when you clicked on the 'Continue with Facebook' button to sign in, the 'sign in' would fail to proceed because the third-party Facebook script required had been blocked by Firefox,' the blog states. In a blog post, Mozilla explained it was due to Facebook trackers being included on the list of tracker provided by its partner, but the updated SmartBlock 2.0 should fix this. One area where SmartBlock failed though, was supporting Facebook login buttons across the web. They allow broken sites relying on the original scripts to load with their functionality intact,' Mozilla said at the time. 'These stand-in scripts behave just enough like the original ones to make sure that the website works properly.

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