SECURITY REPORT · EXTENSHI SCAN
Extended DevTools
Firefox extension·by Sab
0
/ 100 SAFETY SCORE
EXCELLENT
Looks clean. No meaningful risks detected in this scan.
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
Extended DevTools's safety score vs every other extension we've scanned
Globally
93.49%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
83.49%of its category extensions carry more risk
Riskier ←→ Safer
Ranked within its category
Findings
4
median 38Lower is safer
Risky permissions
4
median 1Critical + high perms
Total permissions
10
median 4All declared perms
Critical findings
0
median 2Severity = Critical
Findings breakdown
Automated security signal · 4 distinct issues across 6 severities
4
distinct issues
detected
detected
Critical00%
High250%
Needs Review00%
Medium250%
Low00%
Info00%
Permissions requested
4 risky permissions of 10 total
1 critical permission require attention
This extension requests 10 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
Execute scripts in pages
Can inject and execute JavaScript code in web pages
High
Developer tools
Can extend browser developer tools with custom panels
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
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
Store local data
Can save data locally in the browser for persistence
Medium
Block requests with host access
Can block or redirect network requests and requires host permissions
Low
Block network requests (declarative)
Can block or redirect network requests using predefined rules without seeing content
Are you the author of Extended DevTools?
Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.
Add the badge to your README
Show Extended DevTools'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.