Since Let’s Encrypt launched, secure contexts have become much more mature. We have witnessed the successful restriction of existing, as well as new features to secure contexts. The W3C TAG … Read more
Mozilla’s Root Store Program has taken the position that trust is not automatically transferable between organizations. This is specifically stated in section 8 of our Root Store Policy v2.5, which … Read more
Today we are announcing the relaunch of our web security bug bounty program, creating greater transparency into how we handle web security bug bounty payouts. History Bug bounty programs started … Read more
This is a short announcement for all security researchers working on Firefox that use our pre-built AddressSanitzer (ASan) builds. Until recently, you could download these ASan builds from our FTP … Read more
What security engineers do at Mozilla is critical — not for just Firefox users, but for the whole Web. If you’ve ever used the OWASP Zed Attack Proxy, read our … Read more
The purpose of the HTTP Referer (sic) header is to help sites figure out where their traffic comes from. However, as the Web got more complex, the amount of information … Read more
Issue A flaw in the Network Security Services (NSS) library used by Firefox and other products allows attackers to create forged RSA certificates. Mozilla has released updates to fix this … Read more
Firefox now supports built-in public key pins, which means that a shortened list of acceptable certificate authorities (CAs) for participating sites is built into Firefox. In this first stage of … Read more
At Mozilla, we have a loosely formed group called Security Automation, where people who build security tools can meet, exchange ideas, and show their work. We build projects around applications … Read more
Firefox developer builds (“Nightly“) are now using a new certificate verification library we’ve been working on for some time, and this code is on track to be released as part of … Read more
Today we’re excited to announce a new certificate verification library for Mozilla Products – mozilla::pkix! While most users will not notice a difference, the new library is more robust and … Read more
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