Troubleshooting chrome.extension.onClicked: How to Fix Your Chrome Extension Popup Issue

Описание: Discover how to resolve the `Uncaught TypeError` in your Chrome extension when using `chrome.action.onClicked`. Get a full example with Manifest V3 for seamless popup integration.
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This video is based on the question https://stackoverflow.com/q/69296754/ asked by the user 'LEMO' ( https://stackoverflow.com/u/12928558/ ) and on the answer https://stackoverflow.com/a/70660297/ provided by the user 'Raleigh L.' ( https://stackoverflow.com/u/1576548/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Troubleshooting chrome.extension.onClicked Issue in Chrome Extensions

Building a Chrome extension can be a rewarding experience, but encountering issues can be frustrating, especially when things that used to work suddenly stop. If you’re working with the chrome.action.onClicked method and have started to see an Uncaught TypeError: Cannot read properties of undefined (reading 'onClicked'), you’re not alone.

In this guide, we'll walk through the issue, and provide a full example of how to properly use chrome.action.onClicked in your extension, especially with the recent updates in Manifest V3.

The Problem

You have been trying to implement a Chrome extension that opens a popup when clicked, but you are running into the error mentioned above. This often indicates a problem with how the method is set up or issues related to the manifest file configuration.

Here’s the problematic snippet of code you might have:

[[See Video to Reveal this Text or Code Snippet]]

Error Details

TypeError: This indicates that the chrome.action interface might not be defined or accessible in your extension, possibly due to incorrect configuration in your manifest.json file.

The Solution: A Step-by-Step Guide

Here’s how to set up your Chrome extension correctly with a functional onClicked listener.

Step 1: Create Your manifest.json

Your manifest.json file is crucial as it defines how your extension behaves. Here’s a valid example for Manifest V3:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Implement Your background.js

This script should listen for the action click event and perform the desired action, like opening a popup:

[[See Video to Reveal this Text or Code Snippet]]

Important Notes

File Organization: If you’re using a version of Chrome below 93, ensure that your manifest.json and background.js are in the same directory.

No Comments in JSON: Make sure to remove comments from your JSON files as they are not allowed in the JSON format.

Conclusion

Troubleshooting extensions can sometimes feel like navigating a maze. However, by following these steps, your chrome.action.onClicked issue should be resolved and your popup will be up and running again.

If you have any further questions or run into additional issues, feel free to leave a comment below!