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SECURITY REPORT · EXTENSHI SCAN

Multiple Tab Handler

Firefox extension·by Piro (piro_or)
81
/ 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

Multiple Tab Handler's safety score vs every other extension we've scanned
Globally
40%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 415,509 extensions
In Appearance
15%of appearance extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 19,026 appearance extensions
Findings
14
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
11
median 2Declared in manifest
Active users
2557
median 3vs category median

Findings breakdown

Automated security signal · 14 distinct issues across 6 severities
14
distinct issues
detected

Permissions requested

3 risky permissions of 11 total
1 critical permission require attention
This extension requests 11 permissions in total. 3 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
Access browser cookies

Can read and modify cookies, potentially accessing login sessions

High
View open tabs

Can see URLs and titles of all open tabs

Medium
Access current tab

Can temporarily access the content of the active tab when you click the extension

Medium
Container tabs

Can manage Firefox container tabs and their identities

Medium
Custom menus

Can add custom items to the browser context menu

Medium
Override context menu

Can override the default context menu behavior

Medium
Show notifications

Can display desktop notifications outside the browser

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Access bookmarks

Can read and modify your saved bookmarks

Medium
Browser settings

Can read and modify browser-wide settings

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Scan performed by extenshi.io · Oct 20, 2026
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