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SECURITY REPORT · EXTENSHI SCAN

SunnyCash™ - Cashback & Deal Service

Firefox extension·by Matthias
40
/ 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 6 years
  • Bundles libraries with known vulnerabilities and no fix in sight
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

SunnyCash™ - Cashback & Deal Service's safety score vs every other extension we've scanned
Globally
15%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 402,581 extensions
In Alerts & Updates
5%of alerts & updates extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 7,090 alerts & updates extensions
Findings
64
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
10
median 3Declared in manifest
Active users
1
median 1vs category median

Findings breakdown

Automated security signal · 64 distinct issues across 6 severities
64
distinct issues
detected
Scanners reported 65 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

2 risky permissions of 10 total
1 critical permission require attention
This extension requests 10 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites

Can read and modify content on every website you visit

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

Medium
Show notifications

Can display desktop notifications outside the browser

Medium
Access current tab

Can temporarily access the content of the active tab when you click the extension

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Write to clipboard

Can place content onto your clipboard

Medium
Read clipboard

Can read text and data currently on your clipboard

Medium
Unlimited local storage

Can store large amounts of data locally without size limits

Low
Schedule tasks

Can schedule periodic background tasks

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Scan performed by extenshi.io · Aug 24, 2026
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