uBlock Origin by Raymond Hill
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory.
Extension Metadata
uBlock Origin is not an "ad blocker", it's a wide-spectrum content blocker with CPU and memory efficiency as a primary feature.
***
Out of the box, these lists of filters are loaded and enforced:
- EasyList (ads)
- Peter Lowe’s Ad server list (ads and tracking)
- EasyPrivacy (tracking)
- Malware domains
More lists are available for you to select if you wish:
- Fanboy’s Enhanced Tracking List
- Dan Pollock’s hosts file
- MVPS HOSTS
- Spam404
- 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.
***
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.
***
***
Out of the box, these lists of filters are loaded and enforced:
- EasyList (ads)
- Peter Lowe’s Ad server list (ads and tracking)
- EasyPrivacy (tracking)
- Malware domains
More lists are available for you to select if you wish:
- Fanboy’s Enhanced Tracking List
- Dan Pollock’s hosts file
- MVPS HOSTS
- Spam404
- 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.
***
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.
***
Report this add-on for abuse
If you think this add-on violates Mozilla's add-on policies or has security or privacy issues, please report these issues to Mozilla using this form.
Please don't use this form to report bugs or request add-on features; this report will be sent to Mozilla and not to the add-on developer.
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
- Add-on Links
- Version
- 1.35.2
- Size
- 2.65 MB
- Last updated
- 15 days ago (Apr 30, 2021)
- License
- GNU General Public License, version 3.0
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
Complete release notes.
Closed as fixed:
Firefox 66.0 and earlier.
Notable commits without en entry in the issue tracker
Commits history since 1.35.0.
Closed as fixed:
Firefox 66.0 and earlier.
Notable commits without en entry in the issue tracker
- Better handle network error when fetching sublist
- Stop autoplay for unset media source with no-large-media-elements
- Use CDN URLs as fall back URLs
Commits history since 1.35.0.
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