Home

• Changes from HTTP Switchboard
• About the required permissions
• The extension icon
• The popup panel
• How to block 1st-party scripts everywhere by default
• How to create rules which apply everywhere, on all web sites
• How to work in hard 3rd-party default-deny mode by default
• How to work only with global rules and all scripts blocked by default
• How to "allow all" in uMatrix
• How to get past "uMatrix has prevented the following page from loading"
• How to have root documents blocked by default everywhere
• How to access the popup panel when there is no toolbar
• Default ruleset at installation
• Preset whitelisted and blacklisted domains
• Cookies
• Scope selector
• Per-scope switches
• Raw settings
• Lingering domain entries in the matrix
• Rules syntax
• Examples of useful rulesets
• Logger
• About "the page is still broken after I created all necessary rules"
• FAQ
• Translation work contributors
• Community-provided guides:
  • These guides may or may not reflect my opinion of how to optimally use uMatrix. Feel free to contribute a guide.
  • Setting domain-specific & global rules
• Spotted on the WWW:
  • uMatrix add-on for Firefox – Secure browsing
  • WebExtension uMatrix disponible sur Firefox pour Android (Français)
  • Firefox 57: Sicher ohne NoScript (German)
  • Recommended: How to use uMatrix to protect your online privacy & improve security | uMatrix tutorial
  • uMatrix avec Firefox (Français)
  • uMatrix: A Desperately Needed User’s Guide
  • Chrome: uMatrix - Das wichtigste Addon (German)