When you’re publishing your extension somewhere like the Chrome Web Store, you’ll be asked to justify each permission you’re requesting access to, in order to ensure the security and privacy of your users. Permissions establish what your extension is allowed to do, such as getting the URL of the current page, or adding JavaScript to a website. Here’s what it looks like:īesides the metadata, here’s a bit of info on the important things this manifest is setting up for us: In our case, it will contain metadata about the extension, the permissions it needs to operate, and the script it should run in the background. Manifest.json is the only essential file an extension needs. Thus, Step 1 is: Make an empty repository and create those files inside. These are: manifest.json, background.js and linkedin.js. To make things really simple, our extension will not actually have a pop-up (the little window that appears when you click an extension’s icon) - it will simply be working in the background.Īs such, all we really need are 3 files.

In other words, it won’t work on Firefox or Safari. Chrome, Brave, Opera, Microsoft Edge (yeah, really), etc. Today I decided to share with you how to build a fully-functional extension to block LinkedIn ads, in just 10 minutes.īelieve it or not, extensions are probably the easiest thing you can build, so let’s cut to the chase and in order to really do this in 10 minutes.ĭisclaimer: This extension will only work for Chromium-based browsers e.g.

However, I love the idea of customizing the websites I visit to my own liking, such as to enhance my privacy online. They are quite underrated these days, especially with the move from desktop to mobile browsing.

Adblocker extension