SECURITY REPORT · EXTENSHI SCAN
Open Not in New Tab
Firefox extension·by tukapiyo
81
/ 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
Open Not in New Tab's safety score vs every other extension we've scanned
Globally
40%of extensions carry more risk
Riskier ←→ Safer
Ranked against 402,594 extensions
In Tabs
20%of tabs extensions carry more risk
Riskier ←→ Safer
Ranked against 12,554 tabs extensions
Findings
8
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
4
median 3Declared in manifest
Active users
191
median 2vs category median
Findings breakdown
Automated security signal · 8 distinct issues across 6 severities
8
distinct issues
detected
detected
Critical113%
High113%
Needs Review00%
Medium563%
Low113%
Info00%
Permissions requested
2 risky permissions of 4 total
1 critical permission require attention
This extension requests 4 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites(optional)
Can read and modify content on every website you visit
High
View open tabs
Can see URLs and titles of all open tabs
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
Are you the author of Open Not in New Tab?
Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.
Add the badge to your README
Show Open Not in New Tab's live security score on GitHub or in your docs
Scan performed by extenshi.io · Aug 21, 2026
Browser extensions made transparent.