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
Firefox 60 (the current release) displays an “untrusted connection” error for any website using a TLS/SSL certificate issued before June 1, 2016 that chains up to a Symantec root certificate. … Read more
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
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
The new Firefox Monitor service will use anonymized range query API endpoints from Have I Been Pwned (HIBP). This new Firefox feature allows users to check for compromised online accounts … Read more
Firefox 61 will block subresource loads that rely on the insecure FTP protocol unless the document itself is an FTP document. For example, Firefox will block FTP subresource loads within … Read more
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
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
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
The Application Cache (AppCache) interface provides a caching mechanism that allows websites to run offline. Using this API, developers can specify resources that the browser should cache and make available … Read more
To help prevent third party data leakage while browsing privately, Firefox Private Browsing Mode will remove path information from referrers sent to third parties starting in Firefox 59. Referrers can … Read more
Mozilla has sent a CA Communication to inform Certificate Authorities (CAs) who have root certificates included in Mozilla’s program about current events related to domain validation for SSL certificates and … Read more