Firefox Add-ons
2Versions
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1 indicator

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0 versions analysed

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What our analysis found

Histogram Viewer 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 4 extensions and was last updated in April 2024.

Histogram Viewer

Histogram Viewer Firefox extension security report

ID: histogram-viewer

Extension Info & Metadata

Status
Active
Version
3.0.1resigned1
Size
0.02 MB
Rating
5.0/5
Reviews
2
Users
200
Type
Extension
Updated
Apr 25, 2024
Category
N/A
Price
Free
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
No
This publisherTrack record
4extensions
All still listed

Publisher Contextual Analysis

Author
David Fichtmueller
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
No
Mailbox exists
Yes
Extensions
4
Active
2
Obsolete
0
Listed
4
Unlisted
0
Users
14,247

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Screenshots & videos

Screenshot 1
Screenshot 2
Screenshot 3
Screenshot 4
Screenshot 5

Install growth

Item
Type
Severity
Description
*://*/*
Host
Critical
Broad host access — the extension can read/modify content on every website.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk:• 15% increase: Older manifest version lacks modern security controls
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.
activeTab
Permission
Medium
This permission grants temporary access to the current tab. Rated Medium because it can access current page content when invoked, though limited to user-initiated actions.
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.
file:///*
Host
Medium
Host permission — access limited to this URL pattern.
Older Manifest Version
Risk Factor
Medium
This extension uses Manifest Version 2
contextMenus
Permission
Low
This permission adds items to browser context menus. Rated Medium because it only modifies right-click menus without access to page content.

1 indicator

1 indicator
0 versions analysed

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About this extension

Generates the histogram of a selected image.

Read the publisher’s full description

The Histogram Viewer generates the histogram of a selected image. When the user right clicks on an image, the option "Show Histogram of Image" is shown in the context menu. If the user selects this option a new window is opened which shows the histogram of the image. By default the histogram is generated based on the sum of all 3 RGB color channels. Additionally the histogram for each of the 3 color channels can be shown. Some statistics about the histogram are also shown. <strong>Features</strong> * Grayscale histogram * Option to select the way the grayscale histogram is calculated   * all color channels have the same weight   * the color channels are weighted according to the human perception (gray = 0.299*red + 0.587*green + 0.114*blue) * shows histograms for each color channel * shows statistics about the histogram: min, max, mean, median * optional hiding of the statistics * shows the individual value and its number of occurrences, when the user moves the mouse over the histogram

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Extension files

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URLs
1

URLs

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No URLs found
No IP addresses found

1 indicator

1 indicator
0 versions analysed

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Version
Size
Verdict
Findings
Permhash
3.0.0
Latest
0.01 MBNot scanned—
9ea0e0a5be4718e8965f32a77e6a0fb25d7455974dc44594ca288be6c26ae375
3.0.1resigned1
0.02 MBNot scanned—
9ea0e0a5be4718e8965f32a77e6a0fb25d7455974dc44594ca288be6c26ae375
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Code Diff

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