Is SponsorBlock for YouTube - Skip Sponsorships Safe? — Extension Safety Profile
Quick verdict: SponsorBlock for YouTube - Skip Sponsorships earns a safety grade A, 83.5 out of 100, based on 5 of 5 dimensions.
83.5/100
Grade A · 5 of 5 checks
What we found
Automated safety profile from public signals (the extension's manifest & permissions, store listing, publisher, privacy policy). A full review hasn't been published yet.
We assess SponsorBlock for YouTube - Skip Sponsorships from its the Chrome Web Store listing. It's also published on Firefox Add-ons (AMO) (814,870 users there).
What this safety grade means
SponsorBlock for YouTube - Skip Sponsorships earns a safety grade of A (83.5/100), measured across 5 of 5 dimensions. Its strongest area is Community Reputation (100%). The weakest is Publisher & Identity (60%) — what holds its grade back the most.
On the public records we can check, SponsorBlock for YouTube - Skip Sponsorships comes through cleanly. 2,000,000 active users/installs reported on the store. Store rating 4.6/5 from 3,500 user ratings. Last updated on the store 2026-06-26. This is an automated profile, not a hands-on review — so treat the grade as a starting point: open SponsorBlock for YouTube - Skip Sponsorships's own store listing and privacy policy before installing, and weigh it against the other browser extensions we track below.
Safety Signals
Based on 5 of 5 safety dimensions
| Dimension | Score | Bar | Source |
|---|---|---|---|
| Publisher & Identity | 60% · 4.8/8 pts 2 of 5 checks verified | Automated signals | |
| Permissions & Access | 85% · 21.2/25 pts 3 of 3 checks verified | Automated signals | |
| Data & Privacy | 75% · 12/16 pts 4 of 5 checks verified | Automated signals | |
| Maintenance & Ownership | 100% · 7.5/7.5 pts 1 of 2 checks verified | Automated signals | |
| Community Reputation | 100% · 10/10 pts 2 of 4 checks verified | Automated signals |
In-depth safety analysis
SponsorBlock requests access to YouTube pages and its own API domain. This allows it to detect and skip sponsored segments within videos by reading page content and injecting its own interface. The extension also uses storage permissions to save your settings and a local database of crowd-sourced segment timestamps. For a tool that modifies YouTube’s playback experience, this scope is normal and expected.
Like any extension with host access to a major site, it can technically see what you watch and interact with on YouTube. This is a typical consideration for content-modifying tools: a careful user should only install such extensions from sources they trust and keep them updated. Because SponsorBlock relies on community-submitted data, it does not need to collect your browsing history, and the developer declares it only collects authentication information.
The fact sheet shows a perfect community reputation score, reflecting strong user trust and an active open-source project. The weakest dimension is publisher identity, which scored lower, suggesting that while the extension is well-regarded, the publisher’s identity verification could be more robust. Overall, the permission model aligns with its purpose, and the high community trust is a positive signal.
AI-assisted analysis of the documented signals above (permissions, store data, privacy practices) — explains what they mean and the risks typical for this category. Not a hands-on test.
What the store listing shows
Who's Behind SponsorBlock for YouTube - Skip Sponsorships?
- Publisher https://sponsor.ajay.app/
Public records identify the publisher, but no individual founders or a separate registered company are named — which is what holds the Publisher & Identity score back. Less public information about who operates an extension means less you can verify about their long-term accountability.
How it compares
Among the 838 browser extensions we track, SponsorBlock for YouTube - Skip Sponsorships scores higher on safety than 77% of them.
Computed from our own database of assessed browser extensions — updated as we track more.
Evidence on File (12)
SponsorBlock for YouTube - Skip Sponsorships FAQ
- Is SponsorBlock for YouTube - Skip Sponsorships safe?
- SponsorBlock for YouTube - Skip Sponsorships earns a safety grade of A (83.5/100) on our evidence-based assessment, based on 5 of 5 safety dimensions we could verify from public records. This is an automated profile built from public records, not a hands-on review.
- Who is behind SponsorBlock for YouTube - Skip Sponsorships?
- SponsorBlock for YouTube - Skip Sponsorships is operated by https://sponsor.ajay.app/.
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