SECURITY REPORT · EXTENSHI SCAN
Upfort Browser Firewall
Firefox extension·by Upfort
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
Upfort Browser Firewall's safety score vs every other extension we've scanned
Globally
75.8%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
65.8%of its category extensions carry more risk
Riskier ←→ Safer
Ranked within its category
Findings
68
median 38Lower is safer
Risky permissions
5
median 1Critical + high perms
Total permissions
26
median 4All declared perms
Critical findings
0
median 2Severity = Critical
Findings breakdown
Automated security signal · 68 findings across 5 severities
68
findings
detected
detected
Critical00%
High710%
Medium5479%
Low710%
Info00%
Permissions requested
5 risky permissions of 26 total
5 high-risk permissions require attention
This extension requests 26 permissions in total. 5 of them grant broad capabilities that are worth a careful look.
High
Manage downloads
Can initiate downloads and access your download history
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
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
Access user identity
Can get OAuth2 tokens and access your Google account identity
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
Low
Schedule tasks
Can schedule periodic background tasks
Low
Block network requests (declarative)
Can block or redirect network requests using predefined rules without seeing content
Low
Create offscreen documents
Can create hidden documents for background processing tasks
Info
https://home.staging.upfort.com/*
No additional information available.
Info
https://home.upfort.com/*
No additional information available.
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Scan performed by extenshi.io · Jun 25, 2026· partial run (some scanners failed)
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