uBlock Origin Lite

uBlock Origin Lite

A permission-less content blocker. Blocks ads, trackers, miners, and more immediately upon installation.

What is uBlock Origin Lite?
uBlock Origin Lite is a permission-less MV3-based content blocker designed for Firefox. Built on the same ruleset as uBlock Origin, it blocks ads, trackers, miners and other unwanted content. The add-on only becomes active when interacting with the popup panel or option pages, which minimizes CPU/memory usage. It doesn’t require broad permissions to run, but permissions can be explicitly granted on a per-site basis for a robust filtering experience.
Merlin
Stats
Rating: 4.81 (42)
Version: 2024.4.8.931 (Last updated: 2024-04-08)
Creation date: 2023-08-11
Weekly download count: 400
Firefox on Android: Yes
Risk impact: Very low risk impact
Risk likelihood: Moderate risk likelihood
Manifest version: 3
Permissions:
  • activeTab
  • declarativeNetRequest
  • scripting
  • storage
Size: 7.92M
Stats date:

Other platforms

uBlock Origin Lite
uBlock Origin Lite (v2024.4.8.931)
4.62 (128) 100,000
Not available on Edge
Want to check extension ranking and stats more quickly for other Firefox add-ons? Install Chrome-Stats extension to view Chrome-Stats data as you browse the Firefox Browser Add-ons.
Chrome-Stats extension
Merlin
Summary

uBO Lite (uBOL) is a permission-less MV3-based content blocker.

The default ruleset corresponds to uBlock Origin's default filterset:

  • uBlock Origin's built-in filter lists
  • EasyList
  • EasyPrivacy
  • Peter Lowe’s Ad and tracking server list

You can add more rulesets by visiting the options page -- click the Cogs icon in the popup panel.

uBOL is entirely declarative, meaning there is no need for a permanent uBOL process for the filtering to occur, and CSS/JS injection-based content filtering is performed reliably by the browser itself rather than by the extension. This means that uBOL itself does not consume CPU/memory resources while content blocking is ongoing -- uBOL's service worker process is required only when you interact with the popup panel or the option pages.

uBOL does not require broad "read and modify data" permission at install time, hence its limited capabilities out of the box compared to uBlock Origin or other content blockers requiring broad "read and modify data" permissions at install time.

See more
User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • good design
  • works well on chromium browsers
  • quick adaptation to new realities of Google
Cons
  • limited functionality on Firefox and its derivatives
  • weakened filtering ability by Google with Manifest v3
Most mentioned
  • uBlock Origin Lite using Manifest v3
  • recommend using uBlock Origin (normal)
  • works well on chromium browsers
Recent reviews


View all user reviews
Safety
Risk impact

uBlock Origin Lite is safe to use. It does not request any sensitive permissions.

Risk likelihood

uBlock Origin Lite is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Upgrade to see risk analysis details
Screenshots