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SECURITY REPORT · EXTENSHI SCAN

New Tab Override

Firefox extension·by Sören Hentzschel
97
/ 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

New Tab Override's safety score vs every other extension we've scanned
Globally
97.02%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked across every extension we scan
In its category
87.02%of its category extensions carry more risk
This extension
Riskier ←→ Safer
Ranked within its category
Findings
2
median 38Lower is safer
Risky permissions
3
median 1Critical + high perms
Total permissions
9
median 4All declared perms
Critical findings
0
median 2Severity = Critical

Findings breakdown

Automated security signal · 2 distinct issues across 6 severities
2
distinct issues
detected

Permissions requested

3 risky permissions of 9 total
3 high-risk permissions require attention
This extension requests 9 permissions in total. 3 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
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
Browser settings

Can read and modify browser-wide settings

Medium
Container tabs

Can manage Firefox container tabs and their identities

Medium
Custom menus

Can add custom items to the browser context menu

Medium
Access session data

Can query and restore recently closed tabs and windows

Medium
Store local data

Can save data locally in the browser for persistence

Low
Manage tab groups

Can create and manage tab groups

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