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SECURITY REPORT · EXTENSHI SCAN

Sewlau Auth Public

Firefox extension·by Sewlau
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

Sewlau Auth Public's safety score vs every other extension we've scanned
Globally
77.95%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked across every extension we scan
In its category
67.95%of its category extensions carry more risk
This extension
Riskier ←→ Safer
Ranked within its category
Findings
29
median 38Lower is safer
Risky permissions
8
median 1Critical + high perms
Total permissions
17
median 4All declared perms
Critical findings
5
median 2Severity = Critical

Findings breakdown

Automated security signal · 29 distinct issues across 6 severities
29
distinct issues
detected
Scanners reported 39 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

8 risky permissions of 17 total
2 critical permissions require attention
This extension requests 17 permissions in total. 8 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

Critical
Access to all websites

Can read and modify content on every website you visit

High
Execute scripts in pages

Can inject and execute JavaScript code in web pages

High
View open tabs

Can see URLs and titles of all open tabs

High
Observe web requests

Can monitor all network requests made by the browser

High
Access browsing history

Can read and modify your complete browsing history

Medium
Access current tab

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

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

Medium
Add context menu items

Can add custom items to the right-click context menu

Medium
Access bookmarks

Can read and modify your saved bookmarks

Medium
Show notifications

Can display desktop notifications outside the browser

Low
Detect idle state

Can detect when your machine is idle, active, or locked

Low
Block network requests (declarative)

Can block or redirect network requests using predefined rules without seeing content

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