Why we need better tracking protection

Mozilla has recently announced a change in our approach to protecting users against tracking. This announcement came as a result of extensive research, both internally and externally, that shows that … Read more

TLS 1.3 Published: in Firefox Today

On friday the IETF published TLS 1.3 as RFC 8446. It’s already shipping in Firefox and you can use it today. This version of TLS incorporates significant improvements in both … Read more

Safe Harbor for Security Bug Bounty Participants

Mozilla established one of the first modern security bug bounty programs back in 2004. Since that time, much of the technology industry has followed our lead and bounty programs have … Read more

Introducing the ASan Nightly Project

Every day, countless Mozillians spend numerous hours testing Firefox to ensure that Firefox users get a stable and secure product. However, no product is bug free and, despite all of … Read more

Root Store Policy Updated

After several months of discussion on the mozilla.dev.security.policy mailing list, our Root Store Policy governing Certification Authorities (CAs) that are trusted in Mozilla products has been updated. Version 2.6 has … Read more

Supporting Same-Site Cookies in Firefox 60

Firefox 60 will introduce support for the same-site cookie attribute, which allows developers to gain more control over cookies. Since browsers will include cookies with every request to a website, … Read more

Distrust of Symantec TLS Certificates

A Certification Authority (CA) is an organization that browser vendors (like Mozilla) trust to issue certificates to websites. Last year, Mozilla published and discussed a set of issues with one … Read more

Analysis of the Alexa Top 1M Sites

Prior to the release of the Mozilla Observatory in June of 2016, I ran a scan of the Alexa Top 1M websites. Despite being available for years, the usage rates … Read more