Firefox Add-ons

14Versions

0Code reviewed

Not reviewed

No code review on record

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15 indicators in this extension

15 indicators

0 versions analysed

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What our analysis found

HyperChat [Improved YouTube Chat], used by 4,350 people, is not yet reviewed by Extension Auditor. It comes from a trusted publisher and was last updated in July 2026.

HyperChat [Improved YouTube Chat] Firefox extension security report

ID: hyperchat

Extension Info & Metadata

Status

Active

Version

3.3.2

Size

1.22 MB

Rating

4.6/5

Reviews

Users

4,350

Type

Extension

Updated

Jul 3, 2026

Publisher Contextual Analysis

Trusted

Author: Kento Nishi
Privacy: Privacy Policy
MX records exist: Yes
Domain exists: Yes
Is disposable: No
Is role-based: No
Mailbox exists: Yes
Website: Visit

Extensions

Active

Obsolete

Listed

Unlisted

Users

15,931

Screenshots & videos

Install growth

User Growth

Showing data from Sep 13, 2023 to Sep 12, 2024

Versions

-1.01%(-44 users)

Compared to 3 months ago

5 versions released in this period

Rating Count

Total: 53 ratings+1 (2%)

Average Rating

Current: 4.57 / 5.0-0.14

See plans

React Flow

Internal permhash`9f55359f29…`
No malicious matches

2 other extensions carry this fingerprint, none of them known malicious.

Withheldnot flagged
Withheldnot flagged

Permhash (Mandiant)`49a25f9fee…`
Too common to be evidence

72,711 other extensions carry this fingerprint, 7,263 of them known malicious. A permission set this common is not evidence on its own; the most installed members are listed for reference.

Withheldmalicious
Withheldmalicious
Withheldmalicious
Withheldmalicious
Withheldmalicious
Withheldmalicious
Withheldmalicious
+72,704 more

Network indicators

15 URLs and 0 IP literals were extracted from this version.

Item	Type	Severity	Description
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.
https://www.youtube.com/live_chat*	Host	Medium	Host permission — access limited to this URL pattern.
https://www.youtube.com/live_chat_replay*	Host	Medium	Host permission — access limited to this URL pattern.
https://studio.youtube.com/live_chat*	Host	Medium	Host permission — access limited to this URL pattern.
https://studio.youtube.com/live_chat_replay*	Host	Medium	Host permission — access limited to this URL pattern.

15 indicators in this extension

15 indicators

0 versions analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

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About this extension

Improved YouTube chat with CPU/RAM optimizations, customization options, and cutting-edge features!

User reviews

4.4 out of 5 · 10 most recent reviews

Text reviews

Positive

Negative

great

Firefox user 19232283·4 Aug 2025

Does exactly what it says on the tin, love the improved performance and ability to switch to live chat by default.

rudi·5 May 2025

HyperChat is a must-have extension. YouTube's regular live chat box can slow down your browser, especially on non-Chromium-based browsers. HyperChat replaces the chat box with its own, more performant version. For those who watch streamers with community or hired chatters who post "live" translation comments, such as select streams from Hololive, this extension features a custom interface to display those messages, making it easier to follow along with the dialogue.

Extension files

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URLs

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No URLs found

No IP addresses found

15 indicators in this extension

15 indicators

0 versions analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

Unlock this report — $4.99 Start 7-day trial — all reports

One-time payment · Secure checkout by Stripe

Version	Size	Verdict	Findings	Permhash
2.6.11 Latest	1.15 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
2.6.12	1.15 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
2.6.13	1.15 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
2.6.14	1.15 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
3.0.1	1.20 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
3.0.2	1.20 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
3.0.3	1.20 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
3.0.4	1.20 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
3.1.0	1.20 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
3.1.1	1.20 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7

Showing 1 to 10 of 20 rows

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Code Diff

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0 changed files detected

No comparable text files found between these versions.

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Not reviewed

15 indicators in this extension

What our analysis found