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Preview of uBlock Origin

uBlock Origin by Raymond Hill

Recommended

Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.

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Screenshots
The popup panel: default modeThe dashboard: stock filter listsThe popup panel: default-deny modeThe dashboard: settingsThe popup panel in Firefox Preview: default mode with more blocking options revealedThe unified logger tells you all that uBO is seeing and doing
About this extension
uBlock Origin is not an "ad blocker", it's a wide-spectrum content blocker with CPU and memory efficiency as a primary feature.

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Out of the box, uBO blocks ads, trackers, coin miners, popups, etc. through the following lists of filters, enabled by default:

- EasyList (ads)
- EasyPrivacy (tracking)
- Peter Lowe’s Ad server list (ads and tracking)
- Online Malicious URL Blocklist
- uBO's own lists

More lists are available for you to select if you wish:

- EasyList Cookie
- Fanboy Annoyances
- AdGuard Annoyances
- Dan Pollock’s hosts file
- And many others

Additionally, you can point-and-click to block JavaScript locally or globally, create your own global or local rules to override entries from filter lists, and many more advanced features.

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Free.
Open source with public license (GPLv3)
For users by users.

If ever you really do want to contribute something, think about the people working hard to maintain the filter lists you are using, which were made available to use by all for free.

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PermissionsLearn more

This add-on needs to:

  • Read and modify privacy settings
  • Access browser tabs
  • Store unlimited amount of client-side data
  • Access browser activity during navigation
  • Access your data for all websites
More information
Add-on Links
Version
1.42.4
Size
2.88 MB
Last updated
2 months ago (Apr 7, 2022)
Related Categories
License
GNU General Public License v3.0
Privacy Policy
Read the privacy policy for this add-on
Version History
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Release notes for 1.42.4
See complete release notes for 1.42.4.

Fixes:

Commits history since last version.
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