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SECURITY REPORT · EXTENSHI SCAN

Vimium C - All by Keyboard

Firefox extension·by Dahan Gong
74
/ 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

Vimium C - All by Keyboard's safety score vs every other extension we've scanned
Globally
74.28999999999999%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked across every extension we scan
In its category
64.28999999999999%of its category extensions carry more risk
This extension
Riskier ←→ Safer
Ranked within its category
Findings
41
median 38Lower is safer
Risky permissions
5
median 1Critical + high perms
Total permissions
13
median 4All declared perms
Critical findings
3
median 2Severity = Critical

Findings breakdown

Automated security signal · 41 distinct issues across 6 severities
41
distinct issues
detected
Scanners reported 55 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

5 risky permissions of 13 total
1 critical permission require attention
This extension requests 13 permissions in total. 5 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
Access browsing history

Can read and modify your complete browsing history

High
View open tabs

Can see URLs and titles of all open tabs

High
Manage downloads(optional)

Can initiate downloads and access your download history

High
Access browser cookies(optional)

Can read and modify cookies, potentially accessing login sessions

Medium
Read clipboard

Can read text and data currently on your clipboard

Medium
Write to clipboard

Can place content onto your clipboard

Medium
Show notifications

Can display desktop notifications outside the browser

Medium
Access session data

Can query and restore recently closed tabs and windows

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Monitor navigation

Can observe and track tab navigation events and URL changes

Medium
Access bookmarks

Can read and modify your saved bookmarks

Low
Trigger searches

Can trigger searches using the default search engine

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Scan performed by extenshi.io · Jul 25, 2026· partial run (some scanners failed)
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