Mozilla Security Blog

Securing the proxy API for Firefox add-ons

Add-ons are a powerful way to extend and customize Firefox. At Mozilla, we are committed not only to supporting WebExtensions APIs, but also ensuring the safety and reliability of the … Read more

Firefox 93 protects against Insecure Downloads

  Downloading files on your device still exposes a major security risk and can ultimately lead to an entire system compromise by an attacker. Especially because the security risks are … Read more

Mozilla VPN Security Audit

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 Cure53 conducted earlier this … Read more

Firefox 91 Introduces Enhanced Cookie Clearing

We are pleased to announce a new, major privacy enhancement to Firefox’s cookie handling that lets you fully erase your browser history for any website. Today’s new version of Firefox … Read more

Stopping FTP support in Firefox 90

  The File Transfer Protocol (FTP) has long been a convenient file exchange mechanism between computers on a network. While this standard protocol has been supported in all major browsers … Read more