SECURITY REPORT · EXTENSHI SCAN
ContainerGroup
Firefox extension·by Dinesh Bhattarai
0
/ 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
ContainerGroup's safety score vs every other extension we've scanned
Globally
36%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Privacy & Security
29%of privacy & security extensions carry more risk
Riskier ←→ Safer
Ranked against 11,537 privacy & security extensions
Findings
23
median 5Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
6
median 4Declared in manifest
Active users
1
median 3vs category median
Findings breakdown
Automated security signal · 23 distinct issues across 6 severities
23
distinct issues
detected
detected
Critical00%
High29%
Needs Review00%
Medium2087%
Low14%
Info00%
Permissions requested
2 risky permissions of 6 total
2 high-risk permissions require attention
This extension requests 6 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
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
Container tabs
Can manage Firefox container tabs and their identities
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Low
Manage tab groups
Can create and manage tab groups
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Scan performed by extenshi.io · Aug 3, 2026
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