Chrome
Chromium ZIP · manual setup
Lightweight · Privacy focused · Open source
uBlock Origin Lite
Block Ads. Browse Faster.
Discover a free, open-source content blocker built for modern browsers. uBlock Origin Lite uses Manifest V3 filtering to reduce unwanted ads and tracking requests, with a simple setup you can manage site by site.
- Blocks matching ad requests
- Helps reduce tracking
- Lightweight design
Download a browser-specific release package to your PC or Mac. Browser installation and toolbar pinning are separate steps.
Concept preview only — not a screenshot or real blocking statistics.
Get uBlock Origin Lite for Your Browser
Choose your browser and download the release file directly from this website. No external store redirect; installation is a separate step.
Firefox
Signed XPI · desktop package
Edge
Edge ZIP · manual setup
Safari
Safari ZIP · developer archive
Download only: Chrome and Edge ZIPs are intended for manual/developer setup; Firefox is a signed XPI file; Safari ZIP is a developer archive rather than a one-click Safari installer. Downloading does not install or pin anything. Review the original release before using these files. Verify the upstream release ↗.
Overview
What is uBlock Origin Lite?
uBlock Origin Lite (uBOL) is a free, open-source browser extension developed by Raymond Hill. It is designed around the Manifest V3 extension platform and uses filtering rules managed by your browser to block requests that match known advertising and tracking patterns.
It belongs to the uBlock Origin family, but it does not have exactly the same architecture or controls as the full extension. Lite focuses on ready-to-use rulesets and straightforward filtering levels. Your results depend on which browser you use, the permissions you allow and the sites you visit.
How Does uBlock Origin Lite Work?
uBO Lite uses the browser's declarativeNetRequest filtering system. Instead of checking every request through a continuously running extension process, it gives the browser prepared rules that identify certain ad, tracking and other unwanted resources. When a request matches an applicable blocking rule, the browser can stop that request.
Network filtering is only part of the experience. With the appropriate website permissions, Optimal or Complete filtering modes can also hide selected page elements or apply relevant scriptlet filters. These capabilities explain why a website may look different when you change filtering modes.
Independent website: This page explains uBlock Origin Lite but is not operated by its developer. The browser download links are mirrors of release archives hosted on this site. Check the publisher, signature and permissions before enabling an extension.
Why people choose it
Why Use uBlock Origin Lite?
For many people, the goal is simple: read articles, use websites and browse without as many distracting banners or tracking requests. uBlock Origin Lite helps reduce some of that clutter by applying known filter rules inside a supported browser. It is especially useful for users who prefer an extension that starts working with prepared rulesets rather than requiring advanced configuration.
Lite also fits the direction of modern browser extension APIs. Its browser-managed filtering can reduce the need for a constantly active extension process, although actual page speed and resource savings vary with the sites you visit and the browser you use. It cannot promise to remove every ad, and it does not block advertisements inside unrelated desktop applications.
Key Benefits of uBlock Origin Lite
Easy to get started: choose your browser in the downloads section, review the extension permissions, and follow the relevant browser’s manual setup instructions. Built-in lists, including widely used ad- and privacy-related rulesets, provide a useful starting point without requiring you to write filters yourself.
Control when you need it: the extension lets you adjust filtering per website. If a page stops working correctly, you can review its permissions or lower filtering for that site. Current versions also include tools for certain custom cosmetic filters; read the official quick guide for updated instructions.
Choose the right settings
Compare in the official FAQ
Which uBlock Origin Lite Filtering Mode Should You Use?
There is no need to use the strongest setting everywhere. The default is intended to be Optimal when the required site permissions are granted. If a site has unwanted empty spaces, or breaks after filtering, review its individual settings before changing the default for every website.
| Mode | How it behaves | Best used for |
|---|---|---|
| Basic | Blocks matching network requests; does not run cosmetic or scriptlet-based filtering. | Sites where limited permissions or simpler blocking are preferred. |
| Optimal Intended default | Adds applicable cosmetic and scriptlet filtering when access is allowed. | A useful starting point for regular browsing. |
| Complete | Also permits generic cosmetic filtering where supported and authorized. | Sites where unwanted placeholders remain visible. |
Permissions and platform behaviour can differ. See official troubleshooting instructions.
uBlock Origin Lite vs the full uBlock Origin
Lite is built for Manifest V3 with simpler preset modes. Full uBlock Origin offers a broader set of advanced controls on browsers that support it. Choose based on your browser's extension support and the filtering features you actually need.
FREQUENTLY ASKED QUESTIONSStraight answers
Straight answers
before you download.
Common questions about release downloads, browser compatibility, privacy and how uBlock Origin Lite works.
What is uBlock Origin Lite?
uBlock Origin Lite (uBOL) is a free, open-source browser content blocker based on the Manifest V3 extension API. It uses browser-managed filtering rules to help block matching advertising and tracking requests.
Is uBlock Origin Lite free and safe to install?
The original extension is free and open source. You can download original release archives here. Verify release authenticity and permissions before installing; these downloads do not install the extension automatically.
Is uBlock Origin Lite the same as uBlock Origin?
No. Lite was designed for the Manifest V3 browser extension platform. It differs from full uBlock Origin in filtering architecture and available controls. Which version is suitable depends on your browser and needs.
Which browsers support uBlock Origin Lite?
This site offers original release archives for Chromium/Chrome, Firefox, Edge and Safari. Installation differs by browser; a ZIP or XPI download alone does not install or pin an extension.
What are Basic, Optimal and Complete modes?
Basic provides network request filtering with fewer site permissions. Optimal enables more site content filtering when permission is available. Complete can provide additional cosmetic filtering for selected sites. You can also turn filtering off for a site.
Why am I still seeing ads after installing Lite?
Filtering depends on website changes, active rules, the selected mode and site permissions. Check that Lite is enabled, review its filtering mode for that website and consult the official troubleshooting guide. No blocker can guarantee removal of every ad.
Can I download uBlock Origin Lite for Windows or Mac as an app?
uBlock Origin Lite is a browser extension, not a standalone Windows .exe or macOS desktop ad-blocker. On a computer you install it inside a supported browser; separate system-wide ad blockers are different products.
Does uBlock Origin Lite block ads outside the browser?
No. A browser extension operates in the browsers where it is installed; it does not automatically filter advertisements across all applications on your device.
Can I create custom filters in uBlock Origin Lite?
Yes. Current releases support custom cosmetic filters and related controls, although available features and permissions differ from full uBlock Origin. Consult the official Quick guide for current steps.
READY TO TRY IT?
View downloads Download for your browser.
Download the browser-specific release package to your computer. Installation and toolbar pinning require separate steps.