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SECURITY REPORT · EXTENSHI SCAN

Thredd - Collaborative Browsing

Firefox extension·by thredd.dev@gmail.com
30
/ 100 SAFETY SCORE
DANGEROUS
Meaningful risk surface. Avoid on managed devices without review.

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

Thredd - Collaborative Browsing's safety score vs every other extension we've scanned
Globally
2%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 415,885 extensions
In Social & Communication
1%of social & communication extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 13,751 social & communication extensions
Findings
147
median 9Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
6
median 3Declared in manifest
Active users
10
median 4vs category median

Findings breakdown

Automated security signal · 147 distinct issues across 6 severities
147
distinct issues
detected
Scanners reported 158 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 6 total
1 high-risk permission require attention
This extension requests 6 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 user identity

Can get OAuth2 tokens and access your Google account identity

Medium
Add context menu items

Can add custom items to the right-click context menu

Medium
Show notifications

Can display desktop notifications outside the browser

Medium
Store local data

Can save data locally in the browser for persistence

Info
*://*/*

No additional information available.

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Scan performed by extenshi.io · Oct 22, 2026
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