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Web Modding - Opera GX Mods

Guide to modifying web pages within Opera GX using your mod.

Web modding allows you to customize web pages with animations, transitions, and other visual effects.

🎨 Adding Web Modding

Create a Web Modding Pack

  • Web modding effects are typically .css files
  • Place your Web modding files in a webmodding/ directory inside your mod folder.
my-first-mod

Update manifest.json

manifest.json 
{
  "page_styles": [
    {
      "id": "main-theme",
      "name": "Main Theme",
      "css": ["webmodding/main.theme.css", "webmodding/opera.css"],
      "matches": ["https://*.opera.com/*"]
    }
  ]
}

Add CSS Files

Create .css files with your custom styles and animations. Ensure that the files are correctly formatted and placed in the appropriate directory.

webmodding/main.theme.css
webmodding/opera.css
body {
  background-color: #000;
  color: #fff;
}

🔄 Pro Tips

  • Test web modding effects for performance.
  • Keep web modding effects minimal to avoid overwhelming the UI.
  • Use web modding to enhance the browsing experience for users.
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