Home

This version of uBlock is no longer under development.

Consider using uBlock Origin or another adblocker.

uBlock Origin: https://github.com/gorhill/uBlock

Other adblockers and privacy tools:

• https://www.privacytools.io
• https://prism-break.org/en/all/#web-browser-addons

Please note that donations sought on https://ublock.org/ are not benefiting uBlock Origin developers.

---

• Chinese translation of this wiki: 中文
• Install uBlock from
  • Mozilla Add-ons for Firefox
  • Chrome store
    • Required permissions in Chromium
  • Opera store
  • Manually
• Change log (previous log)
• Quick guides
  • Popup user interface
  • Network request logger
  • Dynamic filtering
• FAQ
• Does uBlock block ads or just hide them?
• Memory footprint: what happens inside uBlock after installation
• About a CSS selector containing "www.faceporn.net"
• How to whitelist a web site
• Privacy issues
• Filter syntax extensions
• Dynamic filtering
• Tips and tricks
  • Element picker
• uBlock vs. ABP: efficiency compared
  • Extension memory usage: benchmarks over time
  • Contributed memory usage: benchmarks over time
• Myths and counterpoints
  • Myth: uBlock consumes over 80MB
  • Myth: uBlock is just slightly less resource intensive than Adblock Plus
  • Myth: This other extension blocks more stuff!
  • Counterpoint: Who care about efficiency, I have a fast CPU and a lot of RAM
  • Counterpoints: Other
• uBlock and others: Blocking ads, trackers, malware
• Videos documenting side-by-side load speed comparisons of a complex site
• Answers to some web store reviews
• What uBlock can and cannot (currently) do