Chrome Web Store

32Versions

0Code reviewed

Not reviewed

No code review on record

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12 indicators in this extension

12 indicators

0 versions analysed

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

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What our analysis found

Blurred thumbnails, used by 1,000 people, is not yet reviewed by Extension Auditor. It comes from a trusted publisher and was last updated in November 2025.

Blurred thumbnails Chrome extension security report

ID: lefhalefpinohjmpfflkfcaoiafmpifb

Supported Languages

🇺🇸English

Extension Info & Metadata

Status

Active

Version

1.7.3

Size

0.03 MB

Rating

4.6/5

Reviews

Users

1,000

Type

Extension

Updated

Nov 27, 2025

Publisher Contextual Analysis

Trusted

Author: krzysiek.kurczewski
Privacy: Privacy Policy
Help: Help Center
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

1,296

Email Change History

1 change

Mar 5, 2025

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Screenshots & videos

Install growth

User Growth

Showing data from Sep 10, 2023 to Sep 08, 2024

Versions

No change in user count

Compared to 3 months ago

13 versions released in this period

See plans

React Flow

Internal permhash`49a25f9fee…`
Too common to be evidence

42,796 other extensions carry this fingerprint, 5,272 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
+42,789 more

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

72,711 other extensions carry this fingerprint, 7,266 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

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

Item	Type	Severity	Description
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.
Early Content Script Execution	Risk Factor	Medium	This extension runs content scripts at document_start.

12 indicators in this extension

12 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

About this extension

Blur thumbnails on YT page for whatever reason

Read the publisher’s full description

Extension allows to selectively blur thumbnails on Youtube videos. # Possible configuration: - Whitelist & blacklist - Channel name - Keywords in video title # How to configure: - Click extension icon to open options - Click on tags to edit existing keywords - Press enter to add new keywords - For channels use plain names (including spaces) - Use: ".*" as a keyword to match all patterns - Use "Test phrase" input on bottom to check which tags will apply for given plain text

User reviews

4.5 out of 5 · 10 most recent reviews

Text reviews

Positive

Negative

thank you....well done

Ajay Jadhav·10 Feb 2026

Pretty great but I wished there was an option to toggle the blur on or off from the extension menu

Imtiaq·11 Jun 2025

Does it work on individual channel pages? Just seems to work on the homepage for me

Rich·5 Oct 2024

Extension files

Browse and explore files within this extension package

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URLs

View the external URLs this extension communicates with to understand its network activity and data interactions.

No URLs found

No IP addresses found

12 indicators in this extension

12 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
1.7.3 Latest	0.03 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
1.7.2	0.03 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
1.7.1	0.03 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
1.6.2	0.03 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
1.6.1	0.03 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
1.6.0	0.03 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
1.5.7	0.03 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
1.5.5	0.03 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
1.5.4	0.03 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
1.5.3	0.03 MB	Not scanned	—	49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7

Showing 1 to 10 of 40 rows

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Code Diff

Compare extension code between any two versions.

0 changed files detected

No comparable text files found between these versions.

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Not reviewed

12 indicators in this extension

What our analysis found

Blurred thumbnails Chrome extension security report

Supported Languages

Extension Info & Metadata

Publisher Contextual Analysis

Email Change History

Screenshots & videos

Install growth

User Growth

Threat relationships

Internal permhash`49a25f9fee…`
Too common to be evidence

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

Network indicators

Security analysis

Manifest File Security Analysis

12 indicators in this extension

Store listing & files

About this extension

User reviews

User Reviews

Extension files

Network indicators

URLs

12 indicators in this extension

Versions & changes

Version History

Code Diff

More from krzysiek.kurczewski

Popular in Just for Fun

User Reviews

User Growth

Rating Count

Average Rating

Threat relationships

Internal permhash`49a25f9fee…`
Too common to be evidence

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

Network indicators

Not reviewed

12 indicators in this extension

What our analysis found

Blurred thumbnails Chrome extension security report

Supported Languages

Extension Info & Metadata

Publisher Contextual Analysis

Email Change History

Screenshots & videos

Install growth

User Growth

Threat relationships

Internal permhash49a25f9fee…Too common to be evidence

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

Network indicators

Security analysis

Manifest File Security Analysis

12 indicators in this extension

Store listing & files

About this extension

User reviews

User Reviews

Extension files

Network indicators

URLs

12 indicators in this extension

Versions & changes

Version History

Code Diff

Related extensions

More from krzysiek.kurczewski

Popular in Just for Fun

User Reviews

User Growth

Rating Count

Average Rating

Threat relationships

Internal permhash49a25f9fee…Too common to be evidence

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

Network indicators

Internal permhash`49a25f9fee…`
Too common to be evidence

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

Internal permhash`49a25f9fee…`
Too common to be evidence

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