uBO Lite
| Browser | Install from ... | Browser | Install from ... |
| --- | --- | --- | --- |
| | Chrome Web Store |
| Firefox Add-ons |
|
| Edge Add-ons |
| Safari App Store or
Beta version via TestFlight |
Description
Frequently asked questions (FAQ))
uBO Lite (uBOL) is an efficient content blocker based on the MV3 API.
uBOL operates entirely declaratively, meaning no permanent process is required for filtering. The browser handles CSS/JS injection for content filtering, ensuring that uBOL does not consume CPU or memory resources while blocking content. The service worker process is only active when interacting with the popup panel or options pages.
The default ruleset includes at least uBlock Origin's default filter set:
- uBlock Origin's built-in filter lists
- EasyList
- EasyPrivacy
- Peter Lowe’s Ad and tracking server list
Changelog
See the _Releases_ section.
Older releases: Wiki/Release notes (salvaged)).
Issues
uBO Lite _extension_ issues can be reported here.
Filter/website issues (ads, detection, trackers, breakage, etc.) need to be reported via the 💬 _Chat_ icon in uBOL while on the affected site.
Support questions can be asked here.
Admin Policies
uBOL exposes settings that can be defined by administrators through managed storage. See Managed settings.
Frequently Asked Questions (FAQ)
For more information, check the _Wiki_).