Flutter lets you build Chrome extensions, which you can publish to Chrome Web Store. In this tutorial, we will walk you through this process and discuss some caveats.

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Google Chrome extensions are small programs that extend Chrome’s functionality. Google Chrome has a standardized API through which extensions can perform various tasks. In this tutorial, we are going to learn how to make a Chrome extension using Flutter Web. To add a background script to a Flutter Chrome extension, add a new file background script and add an explicit width and height to the index. The background script needs explicit permission to run in the browser.

How to build a Chrome extension with Flutter Web

An explanation of Content Security Policy

Publish the Chrome extension to Chrome Web Store