![]() This is the baseline template, you can review everything that’s possible here and here. We’re going to be using Manifest v3 for this. Next, let’s change our manifest.json file to a Chrome Extension manifest. a background.js file - this will contain our background and service-worker scripts.an images folder - this will hold icons for the popup and store listing, you can get the assets I used from the sample repo here.Simply head here to clone the boilerplate repo and get started on your own.Īs you can see we removed things like the favicon and other unneeded assets, and created two new assets: Prefer to dive right into the code? Well, good news! I’ve turned the code from this article into a template. If you are looking to leverage the options page or content scripts, you’ll use something like react-app-rewired to create multiple entry points. These features cover most of what you’ll need for the average extension build. However, we’re going to leave that out of this guide and focus on what works well - the popup and service-worker-based background scripts. Note: There are some limitations with the Chrome extensions and CRA, including the need to modify the default webpack config to access more advanced extension features like options menus and content scripts. We’ll also be using Google’s latest Manifest v3, if you’ve only worked with v2 you should quickly review the migration guide. If you haven’t gone through the Getting Started guide from Google, I’d recommend doing so before diving in here. This setup guide assumes a basic knowledge of Chrome Extension architecture. But the default React project created by create-react-app (‘CRA’) needs a few tweaks to make it work as a browser extension. If you’re looking to create a browser extension with a rich user interface and experience, React can make your life a lot easier. Let’s take a look at how to use create-react-app and Google’s manifest v3 to lay the foundation for a more modern browser extension. Extensions can greatly enhance and add some fun to your browser experience, but they can also be tedious to develop as they traditionally relied on plain ol’ Javascript to get the job done.
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