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123Versions
1Code reviewed

No malware found

In code review (v6.1.5)

Our reviewer read version 6.1.5 — 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

SponsorBlock for YouTube - Skip Sponsorships, used by 2,000,000 people, showed no malicious code in Extension Auditor's review. Its permissions mean it can inject scripts into pages. It comes from a trusted publisher and was last updated in June 2026.

The extension is the legitimate, open-source SponsorBlock for YouTube with over 2 million users, a 4.7 rating, and a trusted publisher. Its permissions (storage, scripting, unlimitedStorage, and host permissions for and) are strictly necessary for its core functionality: modifying YouTube pages to skip sponsored segments and communicating with its own crowdsourcing server. All network requests go to the developer's first-party domain (), and no data is exfiltrated to third parties. The optional host permission for all URLs is only requested when the user enables Invidious support, a feature disclosed in the description. No credential theft, unauthorized tracking, code injection outside YouTube, or remote code loading was found. The ML risk score (0.00) correctly indicates low risk; the risk-engine 'High' classification is a false positive driven by standard permission flags for content-modifying extensions.

SponsorBlock for YouTube - Skip Sponsorships

SponsorBlock for YouTube - Skip Sponsorships

ID: mnjggcdmjocbbbhaepdhchncahnbgone

Supported Languages

🇸🇦Arabic
🇧🇩Bengali
🇧🇷Brazilian Portuguese
🇧🇬Bulgarian
🇪🇸Catalan
🇨🇳Chinese (Simplified)
🇹🇼Chinese (Traditional)
🇭🇷Croatian
🇨🇿Czech
🇩🇰Danish
🇳🇱Dutch
🇺🇸English
🇪🇪Estonian
🇵🇭Filipino
🇫🇮Finnish
🇫🇷French
🇩🇪German
🇬🇷Greek
🇮🇱Hebrew
🇮🇳Hindi
🇭🇺Hungarian
🇮🇩Indonesian
🇮🇹Italian
🇯🇵Japanese
🇮🇳Kannada
🇰🇷Korean
🇱🇻Latvian
🇱🇹Lithuanian
🇲🇾Malay
🇮🇳Malayalam
🇳🇴Norwegian
🇮🇷Persian
🇵🇱Polish
🇵🇹Portuguese
🇷🇴Romanian
🇷🇺Russian
🇷🇸Serbian
🇸🇰Slovak
🇸🇮Slovenian
🇪🇸Spanish
🇸🇪Swedish
🇮🇳Tamil
🇮🇳Telugu
🇹🇭Thai
🇹🇷Turkish
🇺🇦Ukrainian
🇻🇳Vietnamese

Extension Info & Metadata

Status
Active
Version
6.1.6
Size
1.76 MB
Rating
4.6/5
Reviews
3,500
Users
2,000,000
Type
Extension
Updated
Jun 26, 2026
Category
Functionality & ui
Price
Free
Featured
Yes
Visibility
Listed
Mature
No
By Google
No
Trusted
Yes
This publisherTrack record
1extension
All still listed
Scanned by Extension Auditor — Low RiskDevelopers: embed this badge to link to this report.

Publisher Contextual Analysis

Trusted
Author
https://sponsor.ajay.app/View Profile
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
No
Mailbox exists
Yes
Website
Visit
Extensions
1
Active
1
Obsolete
0
Listed
1
Unlisted
0
Users
2,000,000

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Screenshots & videos

Screenshot 1
Screenshot 2
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Install growth

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.
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.
unlimitedStorage
Permission
Medium
This permission removes storage quota restrictions. Rated Medium because it can store large amounts of user data without limits, potentially impacting browser performance and storing extensive tracking data.
https://*.youtube.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://sponsor.ajay.app/*
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.

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About this extension

Skip sponsorships, subscription begging and more on YouTube videos. Report sponsors on videos you watch to save others' time.

Read the publisher’s full description

Available on Firefox as well, visit my site: https://sponsor.ajay.app. SponsorBlock lets you skip over sponsors, intros, outros, subscription reminders, and other annoying parts of YouTube videos. SponsorBlock is a crowdsourced browser extension that lets anyone submit the start and end times of sponsored segments and other segments of YouTube videos. Once one person submits this information, everyone else with this extension will skip right over the sponsored segment. You can also skip over non music sections of music videos. This is open source and the entire database is public. Permission explanations: Access your data for youtube.com, www.youtube-nocookie.com: - Used to modify the YouTube webpage Data usage explanations: "Authentication Information": When you install the extension, it will generate a random "userID" that is used when submitting or voting. This allows you to appear on the leaderboard and helps determine reputation of submissions. With this extension, you will automatically skip YouTube sponsors. More information about how it works: https://sponsor.ajay.app Source code: https://github.com/ajayyy/SponsorBlock Discord: https://discord.gg/QnmVMpU Changelog: https://github.com/ajayyy/SponsorBlock/releases Sometimes people call it Sponsor Block or Sponser Block.

User reviews

Extension files

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URLs
68
IPv4
7

URLs

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No IP addresses found

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