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SECURITY REPORT · EXTENSHI SCAN

Is Slate for Firefox safe?

Checked version: 1.0.0 · Scan date (UTC): 2026-08-24

Firefox extension·by Slate
35
/ 100 SAFETY SCORE
DANGEROUS
Meaningful risk surface. Avoid on managed devices without review.

Abandonedsafety score reduced by 40 points

  • No update in over 4 years
  • The developer's website is no longer reachable
  • 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

Slate for Firefox's safety score vs every other extension we've scanned
Globally
13%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 429,470 extensions
In Photos Music Videos
8%of photos music videos extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 11,384 photos music videos extensions
Findings
37
median 7Lower is safer
Critical findings
4
median 0Severity = Critical
Permissions
4
median 3Declared in manifest
Active users
2
median 7vs category median

Findings breakdown

Automated security signal · 37 distinct issues across 6 severities
37
distinct issues
detected
Scanners reported 55 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

2 risky permissions of 4 total
1 critical permission require attention
This extension requests 4 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites

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 current tab

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

Medium
Add context menu items

Can add custom items to the right-click context menu

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Scan performed by extenshi.io · Oct 22, 2026
Browser extensions made transparent.

What this assessment covers

Store listing
Firefox
Checked version
1.0.0
Current listed version
1.0.0
Scan date (UTC)
Assessment status
Completed

Recorded findings: 4 critical and 3 high severity. Read the finding details before interpreting the score; automated flags are not proof of malicious behaviour.

Automated analysis looks for suspicious code, permissions and other risk signals. It does not observe every runtime behaviour or independently audit the publisher’s servers. A low-risk result is not a guarantee of safety. How our checks work.

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