Is HTML5 Video Speed Control Safe? — Extension Safety Profile

Quick verdict: HTML5 Video Speed Control earns a safety grade B, 78.6 out of 100, based on 5 of 5 dimensions.

B

78.6/100

Grade B · 5 of 5 checks


What we found

Video Speed Controllers · Data updated

Automated safety profile from public signals (the extension's manifest & permissions, store listing, publisher, privacy policy). A full review hasn't been published yet.

What this safety grade means

HTML5 Video Speed Control earns a safety grade of B (78.6/100), measured across 5 of 5 dimensions. Its strongest area is Data & Privacy (100%). The weakest is Maintenance & Ownership (10%) — what holds its grade back the most.

On the public records we can check, HTML5 Video Speed Control looks broadly trustworthy. 40,000 active users/installs reported on the store. Store rating 4.5/5 from 1,300 user ratings. Last updated on the store 2022-03-17. This is an automated profile, not a hands-on review — so treat the grade as a starting point: open HTML5 Video Speed Control's own store listing and privacy policy before installing, and weigh it against the other video speed controllers extensions we track below.

Safety Signals

Based on 5 of 5 safety dimensions

DimensionScoreBarSource
Publisher & Identity 60% · 4.8/8 pts Automated signals
Permissions & Access 90% · 22.5/25 pts Automated signals
Data & Privacy 100% · 16/16 pts Automated signals
Maintenance & Ownership 10% · 0.8/7.5 pts Automated signals
Community Reputation 83% · 8.3/10 pts Automated signals

In-depth safety analysis

The extension requests activeTab, storage, and scripting permissions. This is a typical set for a video speed controller: activeTab lets it act on the current tab only when you invoke it, scripting injects the speed-control code into the page, and storage saves your preferences across sessions. It cannot modify other tabs or access data without a user click on the toolbar icon, and its scope is normal for the category.

Video speed tools by design need to read and alter the active webpage’s media elements. A general safety consideration for such extensions is that they can see the pages where you use them, so they should come from a trusted developer and remain actively maintained. If an extension goes unupdated for years, there is a theoretical risk that a publisher account could be compromised and used to push a malicious update, even if the current version behaves safely.

The strongest dimension in the fact sheet is Data & Privacy (100%), based on the developer’s declarations that data is not sold or used for unrelated purposes. These claims are self-reported and not independently verified. The weakest dimension is Maintenance & Ownership (10%), directly tied to the last update date in March 2022 and the low publisher identity score, indicating the extension may be abandoned. Users should weigh that lack of recent maintenance against the otherwise minimal permission footprint.

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

HTML5 Video Speed Control listing on the Chrome Web Store
HTML5 Video Speed Control on the Chrome Web Store, captured 2026-06-22. View the live listing ↗

Who's Behind HTML5 Video Speed Control?

  • Publisher Cool Apps

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 6 Video Speed Controllers extensions we track, HTML5 Video Speed Control scores higher on safety than 50% of them.

Computed from our own database of assessed Video Speed Controllers extensions — updated as we track more.

Evidence on File (12)

Founder public: Publisher publicly identified: Cool Apps (individual founders not separately named).
Our reports database · Captured 2026-06-19
Registered company: Cool Apps.
Our reports database · Captured 2026-06-19
Data collection scope: Developer lists no user-data categories collected on the store privacy disclosure.
Data not sold: Developer declares on the Chrome Web Store that your data is not sold to third parties.
Data use limited: Developer declares data isn't used for unrelated purposes or to determine creditworthiness/lending.
Privacy policy present: A privacy policy is linked from the store listing: https://audio-editor.freeonlineapps.net/privacy-policy
High-capability permissions: Requests 1 high-capability permission(s): scripting.
Website access scope: Requests no host access — cannot read or change data on the websites you visit.
Manifest version: Built on Manifest V3 (the modern, more sandboxed permission model).
Last updated recency: Last updated on the store 2022-03-17.
Store rating: Store rating 4.5/5 from 1,300 user ratings.
Store users: 40,000 active users/installs reported on the store.

HTML5 Video Speed Control FAQ

Is HTML5 Video Speed Control safe?
HTML5 Video Speed Control earns a safety grade of B (78.6/100) 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 HTML5 Video Speed Control?
HTML5 Video Speed Control is operated by Cool Apps.

Alternatives we track

Browse all browser extensions we've checked → · Best Video Speed Controllers extensions

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Cite this profile: Is HTML5 Video Speed Control safe? — ExtensionTrust. ExtensionTrust. https://extensiontrust.com/tool/html5-video-speed-control/

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