extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Auto-Clear Site Data

Firefox extension·by byuserforuser
73
/ 100 SAFETY SCORE
CAUTION
Mostly fine, but a few things worth reviewing before you install.

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

Auto-Clear Site Data's safety score vs every other extension we've scanned
Globally
20%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 409,596 extensions
In Privacy & Security
15%of privacy & security extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 12,550 privacy & security extensions
Findings
15
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
9
median 4Declared in manifest
Active users
151
median 3vs category median

Findings breakdown

Automated security signal · 15 distinct issues across 6 severities
15
distinct issues
detected
Scanners reported 21 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

4 risky permissions of 9 total
4 high-risk permissions require attention
This extension requests 9 permissions in total. 4 of them grant broad capabilities that are worth a careful look.
High
View open tabs

Can see URLs and titles of all open tabs

High
Delete browsing data

Can remove browsing history, cookies, cache, and other browsing data

High
Observe web requests

Can monitor all network requests made by the browser

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

Medium
Container tabs

Can manage Firefox container tabs and their identities

Medium
Monitor navigation

Can observe and track tab navigation events and URL changes

Medium
Show notifications

Can display desktop notifications outside the browser

Low
Schedule tasks

Can schedule periodic background tasks

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Scan performed by extenshi.io · Oct 16, 2026
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