SECURITY REPORT · EXTENSHI SCAN
Clean Guru- cleaner cache and history
Firefox extension·by Mikhael Robinson
0
/ 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
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
Clean Guru- cleaner cache and history's safety score vs every other extension we've scanned
Globally
22%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Privacy & Security
16%of privacy & security extensions carry more risk
Riskier ←→ Safer
Ranked against 11,537 privacy & security extensions
Findings
21
median 5Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
5
median 4Declared in manifest
Active users
105
median 3vs category median
Findings breakdown
Automated security signal · 21 distinct issues across 6 severities
21
distinct issues
detected
detected
Scanners reported 27 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical210%
High210%
Needs Review00%
Medium1467%
Low314%
Info00%
Permissions requested
4 risky permissions of 5 total
1 critical permission require attention
This extension requests 5 permissions in total. 4 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
Delete browsing data
Can remove browsing history, cookies, cache, and other browsing data
High
View open tabs
Can see URLs and titles of all open tabs
High
Access browser cookies
Can read and modify cookies, potentially accessing login sessions
Medium
Store local data
Can save data locally in the browser for persistence
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Scan performed by extenshi.io · Aug 1, 2026
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