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SECURITY REPORT · EXTENSHI SCAN

Nightly Tester Tools

Firefox extension·by Automation Development
84
/ 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

Nightly Tester Tools's safety score vs every other extension we've scanned
Globally
39%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 415,874 extensions
In Other
24%of other extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 28,829 other extensions
Findings
7
median 6Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
6
median 3Declared in manifest
Active users
1154
median 2vs category median

Findings breakdown

Automated security signal · 7 distinct issues across 6 severities
7
distinct issues
detected

Permissions requested

3 risky permissions of 6 total
2 critical permissions require attention
This extension requests 6 permissions in total. 3 of them grant broad capabilities that are worth a careful look.
Critical
Manage other extensions

Can enable, disable, or uninstall other browser extensions

Critical
Access to all websites

Can read and modify content on every website you visit

High
View open tabs

Can see URLs and titles of all open tabs

Medium
Write to clipboard

Can place content onto your clipboard

Medium
Custom menus

Can add custom items to the browser context menu

Medium
Store local data

Can save data locally in the browser for persistence

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Scan performed by extenshi.io · Oct 22, 2026
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