NightShell
NightShell is a Firefox extension that prevents websites from overriding a user’s dark mode preferences. It runs in the browser and requires access to browser tabs and website data to enforce the preferred appearance.
Overview
4 featuresNightShell is a Browser DevTools & extensions project. It focuses on keeping dark mode enabled when websites attempt to override the browser’s appearance settings. It is built as a consumer product for firefox users who prefer consistent dark mode browsing. NightShell costs nothing to use. NightShell is available on the web and embeddable surfaces.
Behind NightShell is Gideon, and it first shipped in 2026. Among its 4 catalogued features are dark mode protection, website override blocking, and browser tab access. The interface is available in 32 languages, including Czech, German, and Greek.
Summary written by a language model from the project’s public pages.
- Dark mode protection
- Website override blocking
- Browser tab access
- No data collection
Built with & integrations
Trust & compliance
Indexing history
1What PulseGate has recorded for this listing
Frequently asked questions about NightShell
- What does NightShell do?
- NightShell focuses on keeping dark mode enabled when websites attempt to override the browser’s appearance settings. It is catalogued under Browser DevTools & extensions on PulseGate.
- Who should use NightShell?
- NightShell is a consumer product built for firefox users who prefer consistent dark mode browsing.
- Is NightShell free?
- Yes — NightShell is free to use.
- What platforms does NightShell run on?
- NightShell runs on the web and embeddable surfaces.
- Is NightShell still active?
- Unverified. NightShell has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
- What projects are similar to NightShell?
- Similar projects tracked by PulseGate include Night Mode, NightFeather, and Dark Mode.Night ModeNightFeatherDark Mode
- Who makes NightShell?
- NightShell is developed by Gideon.
- When did NightShell launch?
- NightShell first shipped in 2026.
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