Improving Transparency and Assurance in the Web PKI: Mozilla Root Store Policy v3.1
Mozilla remains committed to maintaining a secure, trustworthy, and transparent Web PKI. Today we are announcing the publication of Mozilla Root Store Policy...
Mozilla Security Blog
10 articles
Firefox Security Response to pwn2own 2025
At Mozilla, we consider security to be a paramount aspect of the web. This is why not only does Firefox have a long running bug bounty program but also matur...
Updated GPG key for signing Firefox Releases
The GPG key used to sign the Firefox release manifests is expiring soon, and so we’re going to be switching over to a new signing subkey shortly. The GPG fin...
Enhancing CA Practices: Key Updates in Mozilla Root Store Policy, v3.0
Mozilla remains committed to fostering a secure, agile, and transparent Web PKI ecosystem. The new Mozilla Root Store Policy (MRSP) v3.
Behind the Scenes: Fixing an In-the-Wild Firefox Exploit
At Mozilla, browser security is a critical mission, and part of that mission involves responding swiftly to new threats. Tuesday, around 8 AM Eastern time, w...
Firefox will upgrade more Mixed Content in Version 127
Most of the web already supports HTTPS: In fact, 93% of requests made by Firefox are already HTTPS. As a reminder, HTTP over TLS (HTTPS) fixes the security s...
Rapidly Leveling up Firefox Security
At Mozilla, we believe in an open web that is safe to use. To that end, we improve and maintain the security of people using Firefox around the world.
Mozilla VPN Security Audit 2023
To provide transparency into our ongoing efforts to protect your privacy and security on the Internet, we are releasing a security audit of Mozilla VPN that ...
Version 2.9 of the Mozilla Root Store Policy
Online security is constantly evolving, and thus we are excited to announce the publication of MRSP version 2.9, demonstrating that we are committed to keep ...
Updated GPG key for signing Firefox Releases
The GPG key used to sign the Firefox release manifests is expiring soon, and so we’re going to be switching over to new key shortly. The new GPG fingerprint ...