We are changing the default value of the SameSite attribute for cookies from None to Lax. This will greatly improve security for users. However, some web sites may depend (even unknowingly) on the old default, potentially resulting in breakage for those sites. At Mozilla, we are slowly introducing this change. And we are strongly encouraging all web developers to test their sites with the new default. | | Find Out More |
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Other News
Firefox 79 Includes Protections Against Redirect Tracking |
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A little over a year ago we enabled Enhanced Tracking Protection (ETP) by default in Firefox. Firefox 79 introduces the next step in providing a safer and more private experience with Enhanced Tracking Protection 2.0, where we block a new advanced tracking technique called redirect tracking, also known as bounce tracking. ETP 2.0 clears cookies and site data from tracking sites every 24 hours, except for those you regularly interact with. We’ll be rolling ETP 2.0 out to all Firefox users over the course of the next few weeks.
Read On → |
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| Understanding Web Security Checks in Firefox (Part 2) |
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This is the second and final part of a blog post series that explains how Firefox implements Web Security fundamentals, like the Same-Origin Policy and Content-Security-Policy. It covers how to log internal security information to the console in a human readable format. Ultimately, we hope to inspire new security research in the area of web security checks and to empower participants in our bug bounty program to do better, deeper work.
Get the Details →
Understanding Web Security Checks in Firefox (Part 1) |
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Best of MDN Interactive Examples
<filter-function> |
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One of the features that makes MDN so useful is the wide assortment of detailed, carefully thought-out interactive examples that enable you to learn by doing.
The CSS <filter-function> data type is used to modify the appearance of images. This interactive example and associated code help you understand both what the different filter functions do and how the example was constructed.
Explore It → |
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TOMORROW! Don't miss the next Compiler Compiler! |
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This interactive series is a guided tour of what it is like to work on the SpiderMonkey compiler and improve conformance with ECMA-262, the JavaScript Specification.
Next session August 7!
Join Us → |
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