uBlock Origin is a content blocker for Chromium and Firefox browsers, described by its project as efficient, fast, and lean.
Popup Blocker (strict) vs uBO Lite
How do Popup Blocker (strict) and uBO Lite compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | Popup Blocker (strict) | uBO Lite |
|---|---|---|
| What it is | Popup Blocker (strict) prevents popup windows in a browser extension and includes a history feature. | uBlock Origin Lite is the Manifest V3 version of the uBlock Origin project, with browser installation links listed on its project page. |
| Website | ||
| Type | Open-source project | Open-source project |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Android, Browser extension, Windows | Not recorded |
| Open source | Yes | Yes |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both Popup Blocker (strict) and uBO Lite.
The Locale Switcher extension for Chrome and Firefox changes browser language settings and Accept-Language headers, with per-tab controls.
The arkenfox user.js wiki discusses browser extensions and recommends keeping them to a minimum because they have privileged browser access.
AdGuard's Popup Blocker is a userscript that blocks unwanted pop-up and pop-under windows in browsers that support a userscript manager.
This curated blocklist identifies sites with AI-generated imagery for use with uBlock Origin or uBlacklist, including search-engine filtering.
For Firefox, Chameleon reduces fingerprinting signals using per-origin deterministic noise across browser fingerprinting surfaces.







