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SECURITY REPORT · EXTENSHI SCAN

Fast Tab Switcher

Firefox extension·by A.Volinsky
56
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.

Likely abandonedsafety score reduced by 30 points

  • No update in over 6 years
  • Bundles libraries with known vulnerabilities and no fix in sight
Why this matters

An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.

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

Fast Tab Switcher's safety score vs every other extension we've scanned
Globally
56%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 409,539 extensions
In Tabs
31%of tabs extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 12,598 tabs extensions
Findings
10
median 4Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
2
median 3Declared in manifest
Active users
572
median 2vs category median

Findings breakdown

Automated security signal · 10 distinct issues across 6 severities
10
distinct issues
detected
Scanners reported 16 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

1 risky permission of 2 total
1 high-risk permission require attention
This extension requests 2 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
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

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Scan performed by extenshi.io · Aug 6, 2026
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