Troubleshooting - Opera GX

Issue 1: Extension Fails to Load

Solution:

• Check the Manifest File: Ensure the syntax in manifest.json is correct.
• Verify Permissions: Missing permissions can cause errors. Example: "permissions": "storage", "tabs"
• Inspect the Console: Use the browser’s developer tools to find errors.

Issue 2: My extension is not appearing in Opera GX

Solution:

• Ensure that you've enabled Developer Mode in opera://extensions
• Check that your manifest.json file is correctly formatted
• Verify that you've loaded the extension correctly using "Load unpacked"

Issue 3: GX-specific APIs are undefined

Solution:

• Make sure you're testing in Opera GX, not regular Opera or another browser
• Check that you're using the correct API names and namespaces
• Ensure you've declared any necessary permissions in your manifest.json

Issue 4: My extension is causing high CPU or memory usage

Solution:

• Use the Performance tab in Developer Tools to identify bottlenecks
• Implement lazy loading for resource-intensive features
• Respect the GX Control limits and adjust your extension's behavior accordingly

Issue 5: Changes to my extension are not reflected after reloading

Solution:

• Make sure you've saved all changed files
• Click the "Reload" button next to your extension in opera://extensions
• If problems persist, try removing and re-adding your extension

Issue 6: My extension works locally but fails after publishing

Solution:

• Double-check that all necessary files are included in your package
• Ensure all URLs in your code are correct and use HTTPS where required
• Verify that your published version matches your local testing version