SECURITY REPORT · EXTENSHI SCAN
ExpressVPN: VPN proxy for a better internet
Firefox extension·by ExpressVPN
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
ExpressVPN: VPN proxy for a better internet's safety score vs every other extension we've scanned
Globally
33%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Privacy & Security
26%of privacy & security extensions carry more risk
Riskier ←→ Safer
Ranked against 11,537 privacy & security extensions
Findings
22
median 5Lower is safer
Critical findings
3
median 0Severity = Critical
Permissions
12
median 4Declared in manifest
Active users
56902
median 3vs category median
Findings breakdown
Automated security signal · 22 distinct issues across 6 severities
22
distinct issues
detected
detected
Scanners reported 27 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical314%
High00%
Needs Review00%
Medium1568%
Low418%
Info00%
Permissions requested
8 risky permissions of 12 total
2 critical permissions require attention
This extension requests 12 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
View open tabs
Can see URLs and titles of all open tabs
High
Control proxy settings
Can route your browser traffic through a proxy server
High
Access browser cookies
Can read and modify cookies, potentially accessing login sessions
High
Control privacy settings
Can modify browser privacy settings like Do Not Track and safe browsing
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Unlimited local storage
Can store large amounts of data locally without size limits
Medium
Show notifications
Can display desktop notifications outside the browser
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
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