SECURITY REPORT · EXTENSHI SCAN
CanvasPlus
Firefox extension·by CanvasPlus
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
CanvasPlus's safety score vs every other extension we've scanned
Globally
42%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Appearance
15%of appearance extensions carry more risk
Riskier ←→ Safer
Ranked against 17,915 appearance extensions
Findings
44
median 3Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
4
median 2Declared in manifest
Active users
499
median 3vs category median
Findings breakdown
Automated security signal · 44 distinct issues across 6 severities
44
distinct issues
detected
detected
Scanners reported 46 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical00%
High12%
Needs Review00%
Medium4295%
Low12%
Info00%
Permissions requested
4 permissions declared
No risky permissions
4 permissions requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
Info
*://*.instructure.com/*
No additional information available.
Info
*://*.instructure.com/conversations?*
No additional information available.
Info
*://*.instructure.com/courses/*/quizzes/*/take*
No additional information available.
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Scan performed by extenshi.io · Jul 31, 2026
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