Firefox Add-ons

13Versions

0Code reviewed

Not reviewed

No code review on record

We have not reviewed this extension’s code, so we cannot vouch for it either way. Check the permissions below to decide whether it asks for more than it needs.

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What our analysis found

Turn Off the Lights for Firefox, used by 64,566 people, is not yet reviewed by Extension Auditor. Its permissions mean it can read and change data on all websites and can inject scripts into pages. It comes from a publisher with 66 extensions and was last updated in July 2026.

Turn Off the Lights for Firefox Firefox extension security report

ID: turn-off-the-lights

Extension Info & Metadata

Status

Active

Version

4.6.7

Size

8.42 MB

Rating

4.6/5

Reviews

700

Users

64,566

Type

Extension

Updated

Jul 19, 2026

Publisher Contextual Analysis

Author: Stefan vd
Privacy: Privacy Policy
Website: Visit

Extensions

Active

Obsolete

Listed

Unlisted

Users

965,319

Screenshots & videos

Install growth

User Growth

Showing data from Sep 13, 2023 to Sep 12, 2024

Versions

-1.84%(-1,257 users)

Compared to 3 months ago

3 versions released in this period

Rating Count

Total: 662 ratings+1 (0%)

Average Rating

Current: 4.56 / 5.0-0.02

See plans

React Flow

Internal permhash`8c2da5d7ee…`
No malicious matches

1 other extension carries this fingerprint, none of them known malicious.

Withheldnot flagged

Permhash (Mandiant)`4437679496…`
No malicious matches

1 other extension carries this fingerprint, none of them known malicious.

Withheldnot flagged

Network indicators

221 URLs and 0 IP literals were extracted from this version.

Item	Type	Severity	Description
scripting	Permission	Critical	This permission allows injection and execution of JavaScript on any webpage. Rated Critical because it can modify page content, steal sensitive data, and inject malicious code into any site the extension has access to.
<all_urls>	Host	Critical	Broad host access — the extension can read/modify content on every website.
webNavigation	Permission	High	This permission enables monitoring of all browser navigation events and transitions. Rated High because it can track every page visit, navigation method, and browsing pattern, potentially exposing sensitive browsing behavior and user activities.
Contextual Risk Factors	Risk Factor	High	The following context increases the overall risk:• 10% increase: About:blank access enables potential sandbox escape vectors
Broad Host Permissions	Risk Factor	High	This extension has broad host permissions allowing it to access many or all websites.
Broad Content Script Access	Risk Factor	High	This extension can inject scripts into any website.
tabs	Permission	Medium	This permission enables tab management and monitoring. Rated Medium because it can track open tabs, access tab metadata, and monitor user browsing patterns.
storage	Permission	Medium	This permission allows storing data locally in the browser. Rated Medium because it can persist sensitive user data, track user activities over time, and potentially store malicious payloads.
About:blank Access	Risk Factor	Medium	This extension can run content scripts in about:blank pages.
contextMenus	Permission	Low	This permission adds items to browser context menus. Rated Medium because it only modifies right-click menus without access to page content.
theme	Permission	Low	This permission (Firefox) changes the browser theme. Rated Low because it only affects visual appearance.

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About this extension

The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube and Beyond. Dark mode for all websites. It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, etc.

User reviews

3.6 out of 5 · 10 most recent reviews

Text reviews

Positive

Negative

Excellent extension for Firefox! It is very lightweight and performs smoothly

Firefox user 19927999·13 May 2026

Actually good, didn't burn my eyes

Firefox user 19887039·2 May 2026

The support from the developer is GREAT

Firefox user 19745183·16 Feb 2026

Extension files

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URLs

221

URLs

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No URLs found

No IP addresses found

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Version	Size	Verdict	Findings	Permhash
4.2.2.0 Latest	3.27 MB	Not scanned	—	ac8470747eb9633bc447c3d2c58b0c453458a87b2dda759ce92b4ef4dbccecbb
4.4.3.0	8.05 MB	Not scanned	—	443767949607103c6b8204dba3b12df4a28edfc76190e65aca02650268cad610
4.4.5.0	8.05 MB	Not scanned	—	443767949607103c6b8204dba3b12df4a28edfc76190e65aca02650268cad610
4.5	8.45 MB	Not scanned	—	443767949607103c6b8204dba3b12df4a28edfc76190e65aca02650268cad610
4.5.5	8.45 MB	Not scanned	—	443767949607103c6b8204dba3b12df4a28edfc76190e65aca02650268cad610
4.5.7	8.45 MB	Not scanned	—	443767949607103c6b8204dba3b12df4a28edfc76190e65aca02650268cad610
4.5.8	8.45 MB	Not scanned	—	443767949607103c6b8204dba3b12df4a28edfc76190e65aca02650268cad610
4.6.1	8.42 MB	Not scanned	—	443767949607103c6b8204dba3b12df4a28edfc76190e65aca02650268cad610
4.6.2	8.42 MB	Not scanned	—	443767949607103c6b8204dba3b12df4a28edfc76190e65aca02650268cad610
4.6.3	8.42 MB	Not scanned	—	443767949607103c6b8204dba3b12df4a28edfc76190e65aca02650268cad610

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Code Diff

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0 changed files detected

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Not reviewed

What our analysis found