Monaco Vim Keys

Name: Monaco Vim Keys
Author: Jim

Vim key bindings and relative line numbers for Monaco-based coding practice sites (LeetGPU, LeetCode, LeetCode China, HackerRank, LintCode), with per-site toggles and a floating NORMAL/INSERT/VISUAL mode indicator.

Overview

Firefox Add-ons Store

Daily users

Data as of 2026-09-11

Version:

0.1.0

Last updated: 2026-08-31

Features & Capabilities

Monaco Vim Keys brings NeetCode-style editor settings to the Monaco code editors on popular coding practice sites. It attaches the mature monaco-vim keybinding engine to the editor the site already loads — no remote code, no account, nothing leaves your browser.

Features:

Full vim key bindings (default ON): NORMAL/INSERT/VISUAL modes, motions (hjkl, w/b/e, 0/$, gg/G, counts), operators (d, c, y, x, r), undo/redo, o/O/A, / search, and more.
Relative line numbers (default OFF).
A subtle floating mode indicator (NORMAL / INSERT / VISUAL) next to the editor.
Per-site enable toggles plus global Vim / relative-line-number toggles in the toolbar popup. Settings persist and apply instantly — no page reload.

Supported sites:

leetgpu.com
leetcode.com
leetcode.cn
www.hackerrank.com
www.lintcode.com (caveat: older Monaco without getEditors(); vim attaches when the editor is created or recreated by the page)

Not supported on purpose: neetcode.io and codingame.com already ship native vim support; codewars.com, algoexpert.io, codeforces.com, exercism.org and atcoder.jp do not use the Monaco editor.

Unofficial project — not affiliated with or endorsed by any of the supported sites. Requests no permission besides "storage"; runs only on the listed sites.

Source code, build instructions, and issue tracker: https://github.com/BANANASJIM/monaco-vim-keys

User Growth & Download Statistics

Add-on

By:

Jim

Daily users:

Version:

0.1.0 Last updated: 2026-08-31

Version code:

6444029

Creation date:

2026-08-28

Firefox add-on GUID:

monaco-vim-keys@bananasjim.github.io

Firefox add-on numeric ID:

3061712

Firefox on Android:

Risk:

Permissions:

storage

Content scripts matches:

leetgpu.com
leetcode.com
leetcode.cn
www.hackerrank.com
hackerrank.com
www.lintcode.com
lintcode.com

Size:

102.04KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-09-11

Compare stats and ranking:

Ranking

# 125,437 ▲ 584

Other rankings

#161 in leetcode keyword 14 ▼ 1

For Developers

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Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Jim

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/monaco-vim-keys/

Website:

https://github.com/BANANASJIM/monaco-vim-keys/issues

Is Monaco Vim Keys Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Monaco Vim Keys requires very minimum permissions.

Risk impact analysis details

High Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
Low ******* ****** ** *** ********* ******** ************ ************* ************ *************** ************

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Monaco Vim Keys is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
High **** ********* *** ******** ****** *** ********** *** *** ** ****** ** *****
High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****