Chrome Web Store
6Versions
1Code reviewed

No malware found

In code review (v0.3.4)

Our reviewer read version 0.3.4 — the most recent version we have reviewed — and found no malicious behaviour. The version shown here has not been individually reviewed yet.

What our analysis found

YouTube Dark Theme, used by 60,000 people, showed no malicious code in Extension Auditor's review. It comes from a trusted publisher and was last updated in December 2022.

The extension legitimately uses the cookies permission to set YouTube's PREF cookie for dark mode toggling; no data is exfiltrated. All outbound navigation goes to the publisher's own domain () which is consistent with the privacy policy and extension purpose. The content script injection is restricted to YouTube and only applies user‑configured CSS. The optional 'Explore more' section loads local data and links to the publisher's other extensions, which is a first-party cross‑promotion. While the published manifest summary shows manifest_version 3 versus the bundled manifest_version 2, this mismatch is administrative and does not introduce malicious behaviour.

YouTube Dark Theme

YouTube Dark Theme

ID: icgoeaddhagkbjnnigiblfebijeinfme

Supported Languages

🇧🇬Bulgarian
🇨🇿Czech
🇩🇰Danish
🇳🇱Dutch
🇺🇸English
🇪🇪Estonian
🇫🇮Finnish
🇩🇪German
🇬🇷Greek
🇭🇺Hungarian
🇮🇹Italian
🇯🇵Japanese

Extension Info & Metadata

Status
Active
Version
0.4.1
Size
0.08 MB
Rating
4.2/5
Reviews
225
Users
60,000
Type
Extension
Updated
Dec 27, 2022
Category
Accessibility
Price
Free
Featured
Yes
Visibility
Listed
Mature
No
By Google
No
Trusted
Yes
This publisherTrack record
21extensions
3 no longer listed
Scanned by Extension Auditor — Low RiskDevelopers: embed this badge to link to this report.

Publisher Contextual Analysis

Trusted
Author
MeryDevView Profile
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
No
Mailbox exists
Yes
Website
Visit
Extensions
21
Active
18
Obsolete
3
Listed
21
Unlisted
0
Users
600,321

Screenshots & videos

Screenshot 2

Install growth

Item
Type
Severity
Description
cookies
Permission
High
This permission provides full access to read and modify browser cookies. Rated High because it can steal session tokens, modify authentication cookies, and compromise accounts across websites.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk:• 10% increase: Early script execution enables pre-emptive content manipulation
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.
*://*.youtube.com/*
Host
Medium
Host permission — access limited to this URL pattern.
Early Content Script Execution
Risk Factor
Medium
This extension runs content scripts at document_start.
alarms
Permission
Low
This permission schedules periodic tasks. Rated Low because it can only trigger events at specified times without access to sensitive data.
idle
Permission
Low
This permission detects system idle state. Rated Low because it only observes user activity state without access to activity details.

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About this extension

A light, dark theme for YouTube with easy toggle on and off and scheduling support. This theme is based on the default YouTube theme

Read the publisher’s full description

"Dark Theme for YouTube" extension converts YouTube theme to a highly customizable dark charcoal/blue theme. This extension is built on top of the default YouTube theme (native dark theme) so it is very light-weighted compare to using themes injected by Stylish or Stylus extensions. Features: Turn on and off from the action button to switch between light and dark themes Accepts scheduling to turn on only on the specified period Customize default color scheme Inject custom CSS to alter the default theme (change font-size or font-family for instance) How does this extension work? This extension alters a cookie globally to turn the dark theme on and off. It also injects a lite script to the YouTube pages to alter the color scheme of the root element. In oppose to the other similar extensions, there is no resetting of the default theme or inverting the white theme with an inversion filter. Both of these methods are computationally inefficient. Instead, this extension asks YouTube to turn the native dark theme and only alter the global CSS variables to alter the colors. Note that this method only works if the product supports native coloring. Some Google products do not yet support this feature. Privacy Policy: This extension does not send or receive any data to any server whatsoever. Bug Report: Please either use the commenting section of the FAQs page or the GitHub page for bug reporting. Change Log: 0.2.0 Use the built-in dark theme (Material Design only)

User reviews

Extension files

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URLs
1

URLs

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No URLs found
No IP addresses found

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Code Diff

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