extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Progressive Web Apps for Firefox

Firefox extension·by Filip Štamcar
78
/ 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

Progressive Web Apps for Firefox's safety score vs every other extension we've scanned
Globally
78.12%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked across every extension we scan
In its category
68.12%of its category extensions carry more risk
This extension
Riskier ←→ Safer
Ranked within its category
Findings
11
median 38Lower is safer
Risky permissions
5
median 1Critical + high perms
Total permissions
8
median 4All declared perms
Critical findings
2
median 2Severity = Critical

Findings breakdown

Automated security signal · 11 distinct issues across 6 severities
11
distinct issues
detected
Scanners reported 18 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

5 risky permissions of 8 total
1 critical permission require attention
This extension requests 8 permissions in total. 5 of them grant broad capabilities that are worth a careful look.
Critical
Communicate with desktop apps

Can exchange messages with applications installed on your computer

High
Access all HTTP sites

Can read and modify content on all non-encrypted websites

High
Access all HTTPS sites

Can read and modify content on all encrypted websites

High
Observe web requests(optional)

Can monitor all network requests made by the browser

High
Block and modify web requests(optional)

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

Medium
Show notifications

Can display desktop notifications outside the browser

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Monitor navigation

Can observe and track tab navigation events and URL changes

Are you the author of Progressive Web Apps for Firefox?

Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.

Claim this extension

Add the badge to your README

Show Progressive Web Apps for Firefox's live security score on GitHub or in your docs
Extenshi security score badge preview
Markdown
[![Extenshi security score](https://catalog.extenshi.io/api/badge/11492)](https://catalog.extenshi.io/extensions/11492/security)
HTML
<a href="https://catalog.extenshi.io/extensions/11492/security"><img src="https://catalog.extenshi.io/api/badge/11492" alt="Extenshi security score" /></a>

The badge always shows the current score — it updates automatically after every scan.

Scan performed by extenshi.io · Jul 25, 2026· partial run (some scanners failed)
Browser extensions made transparent.