SECURITY REPORT · EXTENSHI SCAN
File System Access
Firefox extension·by sycxyc
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
File System Access's safety score vs every other extension we've scanned
Globally
75.23%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
65.23%of its category extensions carry more risk
Riskier ←→ Safer
Ranked within its category
Findings
11
median 38Lower is safer
Risky permissions
2
median 1Critical + high perms
Total permissions
4
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
detected
Scanners reported 13 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical218%
High00%
Needs Review00%
Medium655%
Low327%
Info00%
Permissions requested
2 risky permissions of 4 total
2 critical permissions require attention
This extension requests 4 permissions in total. 2 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
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 File System Access?
Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.
Add the badge to your README
Show File System Access's live security score on GitHub or in your docs
Scan performed by extenshi.io · Jul 25, 2026· partial run (some scanners failed)
Browser extensions made transparent.