SECURITY REPORT · EXTENSHI SCAN
Undertab
Firefox extension·by Noxx
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
Undertab's safety score vs every other extension we've scanned
Globally
19%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Games Entertainment
6%of games entertainment extensions carry more risk
Riskier ←→ Safer
Ranked against 8,778 games entertainment extensions
Findings
36
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
14
median 3Declared in manifest
Active users
1
median 4vs category median
Findings breakdown
Automated security signal · 36 distinct issues across 6 severities
36
distinct issues
detected
detected
Critical13%
High514%
Needs Review00%
Medium2981%
Low13%
Info00%
Permissions requested
7 risky permissions of 14 total
1 critical permission require attention
This extension requests 14 permissions in total. 7 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
Access browser cookies
Can read and modify cookies, potentially accessing login sessions
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
Observe web requests
Can monitor all network requests made by the browser
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Unlimited local storage
Can store large amounts of data locally without size limits
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Medium
Show notifications
Can display desktop notifications outside the browser
Medium
Add context menu items
Can add custom items to the right-click context menu
Low
Schedule tasks
Can schedule periodic background tasks
Low
Detect idle state
Can detect when your machine is idle, active, or locked
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Scan performed by extenshi.io · Aug 24, 2026
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