Articles in “Firefox”

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

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

Updating GPG key for signing Firefox Releases

Mozilla offers GPG signing to let you verify the integrity of our Firefox builds. GPG signatures for Linux based builds are particularly important, because it allows Linux distributions and other … Read more

Updates to Firefox’s Breach Alert Policy

Your personal data is yours – and it should remain yours! Unfortunately data breaches that reveal your personal information on the internet are omnipresent these days. In fact, fraudulent use … Read more

Introducing Site Isolation in Firefox

When two major vulnerabilities known as Meltdown and Spectre were disclosed by security researchers in early 2018, Firefox promptly added security mitigations to keep you safe. Going forward, however, it … Read more

Firefox 83 introduces HTTPS-Only Mode

  Security on the web matters. Whenever you connect to a web page and enter a password, a credit card number, or other sensitive information, you want to be sure … Read more

Expanding Client Certificates in Firefox 75

Starting in version 75, Firefox can be configured to use client certificates provided by the operating system on Windows and macOS. Background When Firefox negotiates a secure connection with a … Read more