The arkenfox user.js wiki discusses browser extensions and recommends keeping them to a minimum because they have privileged browser access.
Warning vs Popup Blocker (strict)
How do Warning and Popup Blocker (strict) compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | Warning | Popup Blocker (strict) |
|---|---|---|
| What it is | This arkenfox GitHub issue asks about Firefox's Enhanced Tracking Protection setting for suspected fingerprinting and its behavior. | Popup Blocker (strict) prevents popup windows in a browser extension and includes a history feature. |
| Website | ||
| Type | Open-source project | Open-source project |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Not recorded | Android, Browser extension, Windows |
| Open source | Yes | Yes |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both Warning and Popup Blocker (strict).
The Locale Switcher extension for Chrome and Firefox changes browser language settings and Accept-Language headers, with per-tab controls.
uBlock Origin is a content blocker for Chromium and Firefox browsers, described by its project as efficient, fast, and lean.
Remove tracking elements from URLs automatically with the ClearURLs browser extension.
For Firefox, Chameleon reduces fingerprinting signals using per-origin deterministic noise across browser fingerprinting surfaces.
AdGuard's Popup Blocker is a userscript that blocks unwanted pop-up and pop-under windows in browsers that support a userscript manager.







