Chrome Web StoreNo malware found
In code review (v0.10.2)
Our reviewer read version 0.10.2 — 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
Video Speed Controller, used by 3,000,000 people, showed no malicious code in Extension Auditor's review. Our code review reported 1 finding (1 high), led by other. It comes from a trusted publisher and was last updated in August 2026.
Key findings
- high· other —The published CWS listing shows 'activeTab' permission, but the bundled only includes 'storage'. This permission mismatch could indicate a version discrepancy or undeclared change and may be a security concern.
The extension is a well-known, open-source video speed controller with no network requests, no tracking, and no data collection. All permissions are necessary (storage for settings, host access for video manipulation). The ML model's signals (innerHTML, appendChild) are from standard DOM manipulation in a UI extension. The only discrepancy is a permission mismatch in the published manifest (activeTab not in bundled manifest).
Video Speed Controller
ID: nffaoalbilbmmfgbnbgppjihopabppdk
Supported Languages
Extension Info & Metadata
Publisher Contextual Analysis
- Author
- igrigorikView Profile
- Privacy
- Privacy Policy
- Help
- Help Center
- Country
- US
- MX records exist
- Yes
- Domain exists
- Yes
- Is disposable
- No
- Is role-based
- No
- Mailbox exists
- Yes
- Address
- 708 Long Bridge Street San Francisco, CA 94158-2512 US
- Website
- Visit
Screenshots & videos
Install growth
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About this extension
Speed up, slow down, advance and rewind HTML5 audio/video with shortcuts
Read the publisher’s full description
HTML5 video provides native APIs to accelerate playback of any video, but most implemented players either hide or limit this functionality. This extension fixes that, plus more... It will help you optimize your video viewing by allowing you to make quick playback speed adjustments, as well as rewind the video to hear the last few second one more time. We don't read at a constant speed, and we talk much slower than we read - there is no reason why we have to listen at a constant speed and at a (very) slow rate. Once the extension is installed simply navigate to any page that offers HTML5 video, and you'll see a speed indicator in top left corner of the video player. Hover over the indicator to reveal the controls to accelerate, slowdown, or rewind the video (10 seconds + lowers playback speed). Or, even better, use your keyboard: - S - decrease playback speed. - D - increase playback speed. - R - reset playback speed. - Z - rewind video by 10 seconds. - X - advance video by 10 seconds. - V - show/hide controller. If you prefer other shortcuts, want to change the increment value, or want the player to remember your playback speed in the future, head into the settings page and customize it to your heart's content.
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Extension files
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URLs
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Code Diff
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