How to Download uBlock Origin | Install Guide for 2025

Download uBlock Origin from your browser’s official add-on store, such as Firefox Add-ons or Microsoft Edge Add-ons. Chrome users should install uBlock Origin Lite instead.

Hesitating on how to download uBlock Origin for your browser? The right installation method depends entirely on whether you use Firefox, Chrome, Edge, or Opera. This free, open-source ad and tracker blocker remains one of the most efficient content blockers available, but Google’s transition to Manifest V3 has changed the game for Chrome users entirely. Below is exactly where to get the right version for your browser and how to install it in seconds.

Downloading uBlock Origin: Browser Support in 2025

Not every browser supports the full uBlock Origin extension anymore. Google’s shift to Manifest V3 meant the full version was removed from the Chrome Web Store in Late 2024, and Chrome disabled remaining MV2 extensions in July 2025. The official project now directs Chrome users to a reduced-feature version called uBlock Origin Lite. Firefox, Brave, Edge, and Opera retain full support for the original extension.

Installing uBlock Origin on Firefox, Edge, and Opera

The full uBlock Origin extension is available directly from the official add-on store for each of these browsers. The installation takes less than a minute.

Firefox

Open the Firefox Add-ons site and search for uBlock Origin. The official listing is tagged as “Free” and comes from the developer Raymond Hill. Click “Add to Firefox” and confirm the permissions. The extension will pin itself to your toolbar automatically.

Microsoft Edge

Navigate to the Microsoft Edge Add-ons page for uBlock Origin. Click “Get” and then “Add extension.” Edge installs it immediately and activates the blocker on all sites by default.

Opera

Go to the Opera Add-ons store and locate the official uBlock Origin extension. Click “Add to Opera” and grant the requested permissions. The extension will appear in the top-right corner.

Why Is uBlock Origin Not Available on Chrome?

Google’s introduction of Manifest V3 (MV3) restricted the type of filter lists extensions can use. The full uBlock Origin relies on advanced filter rules that MV3 does not support. As a result, Google removed the extension from the Chrome Web Store in late 2024 and disabled all remaining MV2 extensions in July 2025. You can verify this change on uBlock Origin’s official compatibility page.

Installing uBlock Origin Lite on Chrome

Chrome and other Chromium-based browser users must install uBlock Origin Lite. This version uses declarative net request rules allowed by Manifest V3 and provides strong privacy protection with lower memory usage. It lacks fine-grained cosmetic filtering and dynamic rules found in the full extension, but it remains an effective content blocker for the vast majority of users.

To install, open the Chrome Web Store, search for “uBlock Origin Lite,” and click “Add to Chrome.” Confirm the permissions popup, and the extension activates immediately on all sites.

How to Install uBlock Origin Manually from GitHub

Advanced users and developers can download the source code and package files from the official GitHub repository. This method is recommended only for users comfortable loading unpacked extensions in developer mode. The official GitHub repo hosts releases for Chromium and Firefox, including archived versions of the full uBlock Origin for Chromium-based browsers that still support MV2 (like Brave).

Quick Download Reference for uBlock Origin

The table below gives you a direct action plan based on your browser. Bookmark it for future setups.