extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Vertical Sidebar

Firefox extension·by Sathish
76
/ 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

Vertical Sidebar's safety score vs every other extension we've scanned
Globally
27%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 409,539 extensions
In Appearance
7%of appearance extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 18,944 appearance extensions
Findings
19
median 3Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
9
median 2Declared in manifest
Active users
0
median 3vs category median

Findings breakdown

Automated security signal · 19 distinct issues across 6 severities
19
distinct issues
detected

Permissions requested

2 risky permissions of 9 total
1 critical permission require attention
This extension requests 9 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites(optional)

Can read and modify content on every website you visit

High
View open tabs

Can see URLs and titles of all open tabs

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

Medium
Custom menus

Can add custom items to the browser context menu

Medium
Override context menu

Can override the default context menu behavior

Low
Hide tabs

Can hide or show browser tabs

Low
Schedule tasks

Can schedule periodic background tasks

Low
Manage tab groups

Can create and manage tab groups

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Scan performed by extenshi.io · Aug 24, 2026
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