SECURITY REPORT · EXTENSHI SCAN
Mezmer Browser Extension
Firefox extension·by Mezmer
0
/ 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
Mezmer Browser Extension's safety score vs every other extension we've scanned
Globally
17%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Photos Music Videos
6%of photos music videos extensions carry more risk
Riskier ←→ Safer
Ranked against 10,146 photos music videos extensions
Findings
22
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
11
median 3Declared in manifest
Active users
1
median 6vs category median
Findings breakdown
Automated security signal · 22 distinct issues across 6 severities
22
distinct issues
detected
detected
Critical15%
High314%
Needs Review00%
Medium1255%
Low627%
Info00%
Permissions requested
4 risky permissions of 11 total
1 critical permission require attention
This extension requests 11 permissions in total. 4 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
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
Medium
Add context menu items
Can add custom items to the right-click context menu
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Medium
Show notifications
Can display desktop notifications outside the browser
Medium
Monitor navigation
Can observe and track tab navigation events and URL changes
Info
http://127.0.0.1:47832/*
No additional information available.
Info
http://localhost:47832/*
No additional information available.
Are you the author of Mezmer Browser Extension?
Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.
Add the badge to your README
Show Mezmer Browser Extension's live security score on GitHub or in your docs
Scan performed by extenshi.io · Aug 17, 2026
Browser extensions made transparent.