Popup Blocker (strict) prevents popup windows in a browser extension and includes a history feature.
uBlock Origin (uBO) vs Bookmarklet
How do uBlock Origin (uBO) and Bookmarklet compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | uBlock Origin (uBO) | Bookmarklet |
|---|---|---|
| What it is | uBlock Origin is a content blocker for Chromium and Firefox browsers, described by its project as efficient, fast, and lean. | SB.js brings SponsorBlock to a bookmarklet or userscript for restrictive environments, with loader and standalone usage options. |
| Website | ||
| Type | Open-source project | Open-source project |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Not recorded | Browser extension |
| Open source | Yes | Yes |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both uBlock Origin (uBO) and Bookmarklet.
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.
This SponsorBlock wiki page lists third-party ports of the browser extension for other platforms and explains how to report issues.
Behind The Overlay is a Chrome and Firefox extension that closes website overlays with one button.
This article explains ways to filter ads and block popups on iPhone and macOS, including options for Safari and Apple's browser environment.







