extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Mimecast Incydr - Canary Channel

Firefox extension·by Mimecast Incydr
69
/ 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

Mimecast Incydr - Canary Channel's safety score vs every other extension we've scanned
Globally
13%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 415,831 extensions
In Other
5%of other extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 28,822 other extensions
Findings
100
median 5Lower is safer
Critical findings
5
median 0Severity = Critical
Permissions
15
median 3Declared in manifest
Active users
9
median 2vs category median

Findings breakdown

Automated security signal · 100 distinct issues across 6 severities
100
distinct issues
detected
Scanners reported 106 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

10 risky permissions of 15 total
3 critical permissions require attention
This extension requests 15 permissions in total. 10 of them grant broad capabilities that are worth a careful look.
Critical
Manage other extensions

Can enable, disable, or uninstall other browser extensions

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

High
Manage downloads

Can initiate downloads and access your download history

High
Execute scripts in pages

Can inject and execute JavaScript code in web pages

High
View open tabs

Can see URLs and titles of all open tabs

Medium
Read clipboard

Can read text and data currently on your clipboard

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
View blocked request stats

Can see which declarative rules matched network requests

Info
*://*/*

No additional information available.

Are you the author of Mimecast Incydr - Canary Channel?

Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.

Claim this extension

Add the badge to your README

Show Mimecast Incydr - Canary Channel's live security score on GitHub or in your docs
Extenshi security score badge preview
Markdown
[![Extenshi security score](https://catalog.extenshi.io/api/badge/3794)](https://catalog.extenshi.io/extensions/3794/security)
HTML
<a href="https://catalog.extenshi.io/extensions/3794/security"><img src="https://catalog.extenshi.io/api/badge/3794" alt="Extenshi security score" /></a>

The badge always shows the current score — it updates automatically after every scan.

Scan performed by extenshi.io · Oct 22, 2026
Browser extensions made transparent.