extenshi.io
SECURITY REPORT · EXTENSHI SCAN

No History Containers

Firefox extension·by xieve
93
/ 100 SAFETY SCORE
EXCELLENT
Looks clean. No meaningful risks detected in this scan.

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

No History Containers's safety score vs every other extension we've scanned
Globally
93.33%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked across every extension we scan
In its category
83.33%of its category extensions carry more risk
This extension
Riskier ←→ Safer
Ranked within its category
Findings
4
median 38Lower is safer
Risky permissions
5
median 1Critical + high perms
Total permissions
8
median 4All declared perms
Critical findings
0
median 2Severity = Critical

Findings breakdown

Automated security signal · 4 distinct issues across 6 severities
4
distinct issues
detected
Scanners reported 8 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

5 risky permissions of 8 total
1 critical permission require attention
This extension requests 8 permissions in total. 5 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
Access browsing history

Can read and modify your complete browsing history

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

High
View open tabs

Can see URLs and titles of all open tabs

Medium
Monitor navigation

Can observe and track tab navigation events and URL changes

Medium
Container tabs

Can manage Firefox container tabs and their identities

Medium
Store local data

Can save data locally in the browser for persistence

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Scan performed by extenshi.io · Jul 25, 2026· partial run (some scanners failed)
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