extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Notifier for Yahoo Mail

Chrome extension·by def00111
82
/ 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

Notifier for Yahoo Mail's safety score vs every other extension we've scanned
Globally
45%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 402,581 extensions
In Productivity
57%of productivity extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 194,438 productivity extensions
Findings
12
median 16Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
13
median 3Declared in manifest
Active users
10000
median 14vs category median

Findings breakdown

Automated security signal · 12 distinct issues across 6 severities
12
distinct issues
detected

Permissions requested

4 risky permissions of 13 total
4 high-risk permissions require attention
This extension requests 13 permissions in total. 4 of them grant broad capabilities that are worth a careful look.
High
View open tabs

Can see URLs and titles of all open tabs

High
Execute scripts in pages

Can inject and execute JavaScript code in web pages

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

Medium
Add context menu items

Can add custom items to the right-click context menu

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Monitor navigation

Can observe and track tab navigation events and URL changes

Medium
Show notifications

Can display desktop notifications outside the browser

Low
Schedule tasks

Can schedule periodic background tasks

Low
Block network requests (declarative)

Can block or redirect network requests using predefined rules without seeing content

Low
Create offscreen documents

Can create hidden documents for background processing 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 6, 2026
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