uBO Lite

Browser	Install from ...	Browser	Install from ...
	Chrome Web Store		Firefox Add-ons
	Edge Add-ons		Safari App Store

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

You can enable additional rulesets by visiting the options page — click the Cogs icon in the popup panel.

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.