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SECURITY REPORT · EXTENSHI SCAN

Is Vaccine Availability Alerts safe?

Checked version: not provided · Assessment updated (UTC): 2026-08-24

Firefox extension·by Xtreme Rokx
44
/ 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 5 years
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

Vaccine Availability Alerts's safety score vs every other extension we've scanned
Globally
20%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 427,614 extensions
In Alerts & Updates
11%of alerts & updates extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 7,195 alerts & updates extensions
Findings
32
median 7Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
5
median 3Declared in manifest
Active users
0
median 2vs category median

Findings breakdown

Automated security signal · 32 distinct issues across 6 severities
32
distinct issues
detected
Scanners reported 38 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

3 risky permissions of 5 total
1 critical permission require attention
This extension requests 5 permissions in total. 3 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
Observe web requests

Can monitor all network requests made by the browser

High
Block and modify web requests

Can intercept, block, or modify any network request before it completes

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Show notifications

Can display desktop notifications outside the browser

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Scan performed by extenshi.io · Aug 24, 2026
Browser extensions made transparent.

What this assessment covers

Store listing
Firefox
Checked version
Not provided in this assessment
Current listed version
1.0.0
Assessment updated (UTC)
Assessment status
Completed

Recorded findings: 1 critical and 2 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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