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Preview of Web Injector

Web Injector by Eslam Gomaa

Customize any website by injecting your own CSS and JavaScript. Includes tools for Dark Mode and RTL text fixing.

Available on Firefox for Android™Available on Firefox for Android™
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Extension Metadata

About this extension
Web Injector is a powerful developer tool that gives you full control over any website.
It allows you to inject custom CSS and JavaScript into any page to modify its appearance or functionality.

Key Features:
- Inject custom CSS & JS into any website.
- Live editor with syntax highlighting.
- Built-in Markdown editor with preview.
- Force Dark Mode on any site.
- Auto-fix RTL (Right-to-Left) text direction for Arabic content.
- All data is stored locally on your device.
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Permissions and data

Required permissions:

  • Access your data for all websites

Optional permissions:

  • Access your data for all websites

Data collection:

  • The developer says this extension doesn't require data collection.
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More information
Version
1.3.1
Size
255.9 KB
Last updated
13 days ago (Jan 4, 2026)
Related Categories
  • Web Development
  • Appearance
  • Language Support
License
All Rights Reserved
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