This DIY coding project can add useful features to Chrome, Firefox, or your daily web browser. Most of us spend a lot of time using a web browser. If you're a Chrome, Firefox, or Edge user, you know these browsers offer many third-party extensions to enhance their built-in features.
But what if you need a specific tool or feature not covered by existing add-ons? It might be time to consider writing your own browser extension. That might sound daunting, but it's not too difficult once you learn how. After creating a custom extension, you can keep it for personal use or make it public for others to use. Some coding knowledge is required, so you'll need to understand the basics of how web pages and scripts are written if you don't already know. If you’re a beginner, start small and gradually build up your skills. There are many helpful resources online, from code libraries to courses.
A browser extension is made up of certain components. First is the manifest, which is a file named manifest.json that contains metadata identifying the extension and its functions. You include the extension's name in the manifest, describe its purpose, and specify a default action it performs.