Firefox Add-ons
5Versions
0Code reviewed

Not reviewed

No code review on record

We have not reviewed this extension’s code, so we cannot vouch for it either way. Check the permissions below to decide whether it asks for more than it needs.

Want us to read this extension's code? Ask for a review and we'll queue it.

6 indicators in this extension

6 indicators
0 versions analysed

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

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe

What our analysis found

YouTube on Hover Preview is not yet reviewed by Extension Auditor. Its permissions mean it can read and change data on all websites. It comes from a publisher with 18 extensions and was last updated in January 2026.

YouTube on Hover Preview

YouTube on Hover Preview Firefox extension security report

ID: youtube-on-hover

Extension Info & Metadata

Status
Active
Version
0.3.2
Size
0.03 MB
Rating
4.5/5
Reviews
26
Users
206
Type
Extension
Updated
Jan 1, 2026
Category
N/A
Price
Free
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
No
This publisherTrack record
18extensions
All still listed

Publisher Contextual Analysis

Author
Jeremy Schomery
Website
Visit
Extensions
18
Active
9
Obsolete
0
Listed
18
Unlisted
0
Users
186,893

You reached today's free scan limit (3/3 unique extensions).

Upgrade for full visibility.

Screenshots & videos

Screenshot 1

Install growth

Item
Type
Severity
Description
<all_urls>
Risk Factor
Critical
This permission grants access to all websites without restriction. Rated High because it can access any web content, monitor all web activity, and potentially steal sensitive data across all sites.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk:• 10% increase: Early script execution enables pre-emptive content manipulation
Broad Host Permissions
Risk Factor
High
This extension has broad host permissions allowing it to access many or all websites.
Broad Content Script Access
Risk Factor
High
This extension can inject scripts into any website.
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.
*://www.youtube.com/*
Host
Medium
Host permission — access limited to this URL pattern.
Early Content Script Execution
Risk Factor
Medium
This extension runs content scripts at document_start.

6 indicators in this extension

6 indicators
0 versions analysed

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

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe

About this extension

Preview YouTube while hovering mouse over a YouTube link on any website

Read the publisher’s full description

"YouTube™ on Hover" extension displays a floating panel player once your mouse is over a YouTube link. This is useful to preview YouTube links without the need to open them in separate tabs. To hide the floating player, just click somewhere inside the page. For FAQs please visit: <a rel="nofollow" href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/efce068d9c6ddd96b0e055fe25731b27da525a0e1ea73271efe435824e217a67/http%3A//add0n.com/youtube-hover.html">http://add0n.com/youtube-hover.html</a> For reporting bugs please use: <a rel="nofollow" href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/1864c06b06d1aa63daf2ee5bb244627f2e0d0a178d7028d49f5640f359802cdf/https%3A//github.com/schomery/youtube-hover/issues">https://github.com/schomery/youtube-hover/issues</a> Supported modes (version 0.1.1) 1. Center of the screen (this mode is not affected by scrolling) 2. At link location FAQs page of this add-on has Google Analytics code; terms of service can be found <a rel="nofollow" href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/758e79c1fb29c7234fc61912c71740f2a8b0322601bf688e6a361cff95e02e65/https%3A//www.google.com/analytics/terms/">https://www.google.com/analytics/terms/</a>. For more info please visit "Privacy Policy" link

User reviews

Extension files

Browse and explore files within this extension package

You reached today's free scan limit (3/3 unique extensions).

Upgrade for full visibility.

URLs
6

URLs

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

No URLs found
No IP addresses found

6 indicators in this extension

6 indicators
0 versions analysed

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

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe
Version
Size
Verdict
Findings
Permhash
0.1.9
Latest
0.02 MBNot scanned—
8706e0f9fbeaa9ae0f8499d6b94890f145ee47e5a35f884f738233805f9c234f
0.1.10resigned1
0.03 MBNot scanned—
8706e0f9fbeaa9ae0f8499d6b94890f145ee47e5a35f884f738233805f9c234f
0.3.0
0.03 MBNot scanned—
49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
0.3.1
0.03 MBNot scanned—
49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
0.3.2
0.03 MBNot scanned—
49a25f9feefaffecad0fcd30c50dc9331cff8b55ece53def6285c09e17e6f5d7
Showing 1 to 5 of 10 rows
Rows per page:

Code Diff

Compare extension code between any two versions.

0 changed files detected

No comparable text files found between these versions.

You reached today's free scan limit (3/3 unique extensions).

Upgrade for full visibility.