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SECURITY REPORT · EXTENSHI SCAN

Custom Shortcut

Firefox extension·by Crokket
67
/ 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

Custom Shortcut's safety score vs every other extension we've scanned
Globally
10%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 409,539 extensions
In Web Development
5%of web development extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 15,317 web development extensions
Findings
45
median 4Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
15
median 3Declared in manifest
Active users
1
median 2vs category median

Findings breakdown

Automated security signal · 45 distinct issues across 6 severities
45
distinct issues
detected
Scanners reported 56 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

6 risky permissions of 15 total
2 critical permissions require attention
This extension requests 15 permissions in total. 6 of them grant broad capabilities that are worth a careful look.
Critical
Manage other extensions

Can enable, disable, or uninstall other browser extensions

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
View open tabs

Can see URLs and titles of all open tabs

High
Delete browsing data

Can remove browsing history, cookies, cache, and other browsing data

High
Execute scripts in pages

Can inject and execute JavaScript code in web pages

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Write to clipboard

Can place content onto your clipboard

Medium
Access bookmarks

Can read and modify your saved bookmarks

Medium
Access session data

Can query and restore recently closed tabs and windows

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

Medium
Read clipboard

Can read text and data currently on your clipboard

Info
*://*/*

No additional information available.

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Scan performed by extenshi.io · Aug 3, 2026
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