To provide a better and safer experience on the Web, we have been working to move Firefox away from plugins. After much testing and iteration, we determined that Firefox would … Read more
Web developers need better tools to help them debug security issues. The Web Console, part of the Firefox Developer Tools, shows errors and warnings filtered into different categories. Firefox 23 … Read more
Update – August 5, 2013 Issue Mozilla was notified on August 4, 2013 of a potential security vulnerability with Firefox 17 (current general release is Firefox 22). Upon investigation we … Read more
Content Security Policy (usually abbreviated as CSP) is a way for web pages to restrict the sites allowed to include content within the page. It also can restrict whether inline … Read more
We recently started measuring C/C++ code coverage on mozilla-central again and documented the various efforts around it in a new MDN article.
Update – Aug 31, 2012 Yesterday Oracle released a patch for the critical vulnerabilities identified within Java. Visit the Mozilla Plugin Check webpage to find out if your Java plugin … Read more
In the past half year I learned quite a lot about the different fuzzing approaches that security researchers and contributors use on Firefox. Although information on the subject should be … Read more
Recently, Mozilla responded to an imminent threat to Firefox users who have an outdated Java plugin installed: Vulnerable versions of the plugin were blocked automatically (see blog post). Since then, … Read more
Fuzz testing (automated, random testing) is an important part of nearly every application security life cycle. While there are a lot of tools, frameworks and harnesses available for regular desktop … Read more
In a previous blog post, I outlined how the memory error detection tool Address Sanitizier (ASan) can be used with Firefox to find memory problems with a high degree of … Read more
Earlier today we sent an email to all certificate authorities in the Mozilla root program to clarify our expectations around certificate issuance. In particular, we made it clear that the … Read more
Earlier this week we revoked our trust in the DigiNotar certificate authority from all Mozilla software. This is not a temporary suspension, it is a complete removal from our trusted … Read more