Extension Auditor
Sign Up
Chrome Web Store
8Versions
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.

5 indicators in this extension

5 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

InstAddr for Chrome, used by 20,000 people, is not yet reviewed by Extension Auditor. Its permissions mean it can inject scripts into pages and can observe network requests. It comes from a trusted publisher and was last updated in August 2026.

InstAddr for Chrome

InstAddr for Chrome Chrome extension security report

ID: ephdkjannbbaocplebkfnnnimphfpigj

Supported Languages

🇺🇸English
🇯🇵Japanese

Extension Info & Metadata

Status
Active
Version
2.2.2
Size
0.03 MB
Rating
4.7/5
Reviews
66
Users
20,000
Type
Extension
Updated
Aug 8, 2026
Category
Tools
Price
Free
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
Yes
Download CRX
Chrome Web Store
Report Issue
This publisherTrack record
1extension
All still listed

Publisher Contextual Analysis

Trusted
Author
https://m.kuku.lu/
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
1
Active
1
Obsolete
0
Listed
1
Unlisted
0
Users
20,000

Screenshots & videos

Screenshot 1

Install growth

Item
Type
Severity
Description
webRequest
Permission
Critical
This permission enables the extension to monitor and analyze all web requests made by the browser. Rated Critical because it can observe all network traffic including sensitive data, track browsing behavior, and gather authentication tokens.
scripting
Permission
Critical
This permission allows injection and execution of JavaScript on any webpage. Rated Critical because it can modify page content, steal sensitive data, and inject malicious code into any site the extension has access to.
offscreen
Permission
High
This permission creates hidden browser documents with full DOM access. Rated High because it can run background operations invisibly, potentially executing malicious code without user awareness.
Dangerous Permission Combination: background,webRequest,storage
Risk Factor
High
Enables extensions to operate in the background, intercept web requests, and manage privacy settings and browsing data, facilitating concealed actions and potentially undetected modifications.
background
Permission
Medium
This permission allows continuous background operation. Rated Medium because it can perform actions without user awareness, consume system resources, and maintain persistent connections.
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.
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.
*://*.kuku.lu/
Host
Medium
Host permission — access limited to this URL pattern.
notifications
Permission
Low
This permission displays system notifications. Rated Low because it can only show user-visible notifications without accessing system data.
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.
alarms
Permission
Low
This permission schedules periodic tasks. Rated Low because it can only trigger events at specified times without access to sensitive data.

5 indicators in this extension

5 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

Extension that notifies you of new e-mails received at your InstAddr e-mail address.

Read the publisher’s full description

Pop-up notifications will notify you when an email is received at the email address you have obtained from InstAddr. You can create and automatically enter a Disposable E-Mail Address with a single click by right-clicking in the input box on the site. InstAddr is a highly functional disposable email address service available for PCs and smartphones (Android, iPhone, iPad, Kindle Fire...). You can get as many e-mail addresses as you want with one click, and delete them as soon as you don't need them any more. InstAddr https://m.kuku.lu/ --- Due to Chrome's transition to Manifest V3, which will soon force all extensions to migrate to Manifest V3, some functions that were previously available in V2 (such as sound notification and synthetic voice) are no longer available. Please understand this.

User reviews

Extension files

Browse and explore files within this extension package

Gain full insight into all external connections.

Upgrade for full visibility.

Sign In
URLs
5

URLs

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

No URLs found
No IP addresses found

5 indicators in this extension

5 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
2.2.2
Latest
0.03 MBNot scanned—
f4a16154cdf346ad84836b7aa140df89805180aa17f9abdd55a954cf9897b4cf
2.2.0
0.03 MBNot scanned—
f4a16154cdf346ad84836b7aa140df89805180aa17f9abdd55a954cf9897b4cf
2.0.4
0.03 MBNot scanned—
4b79cc0d8747b37f0161e690f5123f0529a77856a93682fb1495299ae6cff0b3
2.0.3
0.03 MBNot scanned—
4b79cc0d8747b37f0161e690f5123f0529a77856a93682fb1495299ae6cff0b3
2.0.1
0.03 MBNot scanned—
4b79cc0d8747b37f0161e690f5123f0529a77856a93682fb1495299ae6cff0b3
2.0.0
0.03 MBNot scanned—
78281202d448056c7e85cd74e77a0625cc47374e5d75fff797d1ffa2f4a6a678
1.9.0
0.81 MBNot scanned—
ea005fd61663153e7ffce218f5906b4b88624dc5df32922137306c4c569eb78f
2.1.0
0.03 MBNot scanned—
4b79cc0d8747b37f0161e690f5123f0529a77856a93682fb1495299ae6cff0b3
Showing 1 to 8 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.

Gain full insight into all external connections.

Upgrade for full visibility.

Sign In

Related extensions

Popular in Tools