SECURITY REPORT · EXTENSHI SCAN
Topic Mastery Heatmap CM
Firefox extension·by Yassu
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
Topic Mastery Heatmap CM's safety score vs every other extension we've scanned
Globally
50%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Other
21%of other extensions carry more risk
Riskier ←→ Safer
Ranked against 26,888 other extensions
Findings
13
median 3Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
5
median 3Declared in manifest
Active users
0
median 2vs category median
Findings breakdown
Automated security signal · 13 distinct issues across 6 severities
13
distinct issues
detected
detected
Critical00%
High18%
Needs Review00%
Medium1185%
Low18%
Info00%
Permissions requested
2 risky permissions of 5 total
1 critical permission require attention
This extension requests 5 permissions in total. 2 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
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Show notifications
Can display desktop notifications outside the browser
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Are you the author of Topic Mastery Heatmap CM?
Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.
Add the badge to your README
Show Topic Mastery Heatmap CM's live security score on GitHub or in your docs
Scan performed by extenshi.io · Aug 24, 2026
Browser extensions made transparent.