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uBlacklist is a Google Search filter for Chrome and Firefox.




  • Prevent blocked sites from appearing even in a moment
  • Block sites with specific URLs using match patterns or regular expressions
  • Block sites with specific titles using regular expressions
  • Highlight sites
  • Support Bing, DuckDuckGo, Ecosia (partially), Qwant and
  • Synchronize block rules among devices using Google Drive or Dropbox
  • Subscribe to public block rules
  • Support Firefox for Android (without synchronization) not available in Firefox for Android 79 or later