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+[#]: subject: (Mozilla Firefox Is Adding Capabilities to Defend Against Malicious Sites on Desktop)
+[#]: via: (https://news.itsfoss.com/firefox-defending-malicious-sites/)
+[#]: author: (Ankush Das https://news.itsfoss.com/author/ankush/)
+[#]: collector: (lujun9972)
+[#]: translator: ( )
+[#]: reviewer: ( )
+[#]: publisher: ( )
+[#]: url: ( )
+
+Mozilla Firefox Is Adding Capabilities to Defend Against Malicious Sites on Desktop
+======
+
+Mozilla Firefox is a popular privacy-oriented, free and open-source web browser. While privacy and security were always the core focus of their offering, they are introducing a security architecture to isolated websites.
+
+While this was something already present in Chromium, Mozilla has finally joined the party.
+
+It basically changes the way how Mozilla Firefox works on desktop in the background, without affecting the user experience. It is available to test with Firefox beta/nightly, and will roll out to stable releases soon.
+
+Here, I highlight the key takeaways from the [official announcement][1].
+
+### Site Isolation to Protect Against Malicious Attacks
+
+With site isolation security architecture, every website that you load will have a separate process in the operating system.
+
+This will make sure that no malicious component of a website can access any information from another website that you access.
+
+In other words, every website loaded stays isolated from each other by having unique processes in the operating system. Just like the Total Cookie Protection feature introduced with [Firefox 86][2], which separated cookies for every website.
+
+![][3]
+
+Here’s what the announcement mentions about it:
+
+> In more detail, whenever you open a website and enter a password, a credit card number, or any other sensitive information, you want to be sure that this information is kept secure and inaccessible to malicious actors.
+>
+> As a first line of defence Firefox enforces a variety of security mechanisms, e.g. the [same-origin policy][4] which prevents adversaries from accessing such information when loaded into the same application.
+
+This is definitely something that should be useful in the long run because this happens automatically and you do not have to enable anything to activate the security feature.
+
+### Secure Browsing Experience With Firefox
+
+Technically, the site isolation still depends on the guarantees of the operating system memory protection, but it is a big step towards securing the browsing experience.
+
+In addition to separating every website and its information, there are a couple of other benefits to this new addition as well.
+
+Just because every website will have a different process, when one of the sites that you load require more computing power, it will not necessarily affect the responsiveness of other sites. Similarly, if a tab crashes, it will not affect other websites on other tabs.
+
+Also, this will enable the browser to efficiently use multiple cores in a modern processor and going forward.
+
+For more technical details, and how to test it, you can go through the [official details][1].
+
+#### Big Tech Websites Get Millions in Revenue, It's FOSS Got You!
+
+If you like what we do here at It's FOSS, please consider making a donation to support our independent publication. Your support will help us keep publishing content focusing on desktop Linux and open source software.
+
+I'm not interested
+
+--------------------------------------------------------------------------------
+
+via: https://news.itsfoss.com/firefox-defending-malicious-sites/
+
+作者：[Ankush Das][a]
+选题：[lujun9972][b]
+译者：[译者ID](https://github.com/译者ID)
+校对：[校对者ID](https://github.com/校对者ID)
+
+本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
+
+[a]: https://news.itsfoss.com/author/ankush/
+[b]: https://github.com/lujun9972
+[1]: https://hacks.mozilla.org/2021/05/introducing-firefox-new-site-isolation-security-architecture/
+[2]: https://news.itsfoss.com/firefox-86-release/
+[3]: data:image/svg+xml;base64,PHN2ZyBoZWlnaHQ9IjY2OCIgd2lkdGg9IjQ3MiIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiB2ZXJzaW9uPSIxLjEiLz4=
+[4]: https://developer.mozilla.org/en-US/docs/Web/Security/Same-origin_policy