extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Responsive Web Design Tester

Edge extension·by eSolutions Nordic AB
41
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.

Likely abandonedsafety score reduced by 30 points

  • No update in over 5 years
  • Built on Manifest V2, which Chrome and Edge are retiring
Why this matters

An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.

Automated analysis of publicly available code — not a professional security audit. It may produce false positives and does not prove an extension is unsafe or safe. Treat it as one signal among many. Disclaimer · Report an issue

How it ranks

Responsive Web Design Tester's safety score vs every other extension we've scanned
Globally
16%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 397,522 extensions
In Developer Tools
28%of developer tools extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 3,298 developer tools extensions
Findings
25
median 16Lower is safer
Critical findings
2
median 1Severity = Critical
Permissions
6
median 3Declared in manifest
Active users
4310
median 50vs category median

Findings breakdown

Automated security signal · 25 distinct issues across 6 severities
25
distinct issues
detected
Scanners reported 36 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

3 risky permissions of 6 total
3 high-risk permissions require attention
This extension requests 6 permissions in total. 3 of them grant broad capabilities that are worth a careful look.
High
Observe web requests

Can monitor all network requests made by the browser

High
Block and modify web requests

Can intercept, block, or modify any network request before it completes

High
View open tabs

Can see URLs and titles of all open tabs

Medium
Add context menu items

Can add custom items to the right-click context menu

Info
http://*/

No additional information available.

Info
https://*/

No additional information available.

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Scan performed by extenshi.io · Aug 19, 2026
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