SECURITY REPORT · EXTENSHI SCAN
History Blocker
Firefox extension·by Sylivia
How it ranks
History Blocker's safety score vs every other extension we've scanned
Globally
99%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
90%of its category extensions carry more risk
Riskier ←→ Safer
Ranked within its category
Findings
0
median 38Lower is safer
Risky permissions
2
median 1Critical + high perms
Total permissions
3
median 4All declared perms
Critical findings
0
median 2Severity = Critical
Findings breakdown
Automated security signal · 0 findings across 5 severities
0
findings
detected
detected
Critical00%
High00%
Medium00%
Low00%
Info00%
Permissions requested
2 risky permissions of 3 total
2 high-risk permissions require attention
This extension requests 3 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
High
Access browsing history
Can read and modify your complete browsing history
High
View open tabs
Can see URLs and titles of all open tabs
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
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Scan performed by extenshi.io · Jun 25, 2026· partial run (some scanners failed)
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