⚠️Not updated in over a year
Description
This extension helps developers easily recognize when they are working in a local or development environment by displaying a clear warning banner at the top of the page.
🚀 Features:
✅ Detects localhost, 127.0.0.1, .docker, and dev. domains.
✅ Displays a red warning banner with “This is a local or development page!” message.
✅ Prevents accidental modifications or actions in non-production environments.
✅ Works automatically on all web pages without additional setup.
Perfect for developers, testers, and teams working with local or staging environments!
🔧 How to use:
1. Install the extension.
2. Open any local or development site (e.g., http://localhost, http://xxxx.docker, https://dev.xxxx).
3. See the warning banner at the top of the page.
⚠️ Note: This extension does not modify site functionality—it only adds a visual indicator to prevent mistakes.
Reviews
Loading reviews...
Permissions (2)
Permissions
activeTabℹ Can access the current tab when you click the extension storageℹ Can store data locally in your browser
Details
| Version | 2.0 |
| Updated | Mar 27, 2025 |
| Size | 121KiB |
| First Seen | Mar 26, 2026 |
Popular in developer
GoFullPage - Full Page Screen Capture
by GoFullPage
10M
★ 4.89
developer
10M
★ 4.89
developer
TouchEn PC보안 확장
by 라온시큐어
8M
★ 1.33
developer
8M
★ 1.33
developer
React Developer Tools
by Meta
5M
★ 3.95
developer
5M
★ 3.95
developer
Meta Pixel Helper
by Meta
4M
★ 3.91
developer
4M
★ 3.91
developer
ColorZilla
by colorzilla.com
4M
★ 4.59
developer
4M
★ 4.59
developer
Popular Extensions
Adobe Acrobat: PDF edit, convert, sign tools
by Adobe Inc.
331M
★ 4.40
workflow
331M
★ 4.40
workflow
AdBlock — block ads across the web
by AdBlock
62M
★ 4.48
workflow
62M
★ 4.48
workflow
Grammarly: AI Writing Assistant and Grammar Checker App
by Grammarly
42M
★ 4.50
communication
42M
★ 4.50
communication
Adblock Plus - free ad blocker
by eyeo GmbH
41M
★ 4.39
workflow
41M
★ 4.39
workflow
Chrome Remote Desktop
by Chrome Remote Desktop Release Managers
38M
★ 3.14
workflow
38M
★ 3.14
workflow