To know more about the architecture of extensions in Opera, please read the associated article, which describes it in detail. You could also need some other HTML (and related CSS and JavaScript) files for button popups or an options page.Īpart from all the JS and HTML files, you’ll also need to put in some images for the extension icons.Īll of this is wrapped in a ZIP file format with the. Apart from that, it could have a content script which deals with changes to web pages. It will also typically have a background page or background script, which is responsible for communicating with the browser UI.

It also lists the various API permissions we want the extension to have. What’s in an Opera extension?Īn Opera extension contains a manifest file which defines metadata like the name of the extension, its author, etc. In this article we’ll put together a simple example extension to show you how it works. And even if you aren’t, Opera extensions are still easy - they are made using open web technologies, plus some specific APIs to tap into browser functionality. If you are already familiar with making Google Chrome extensions, then you will be right at home, as Opera uses the Chromium extensions architecture (with some minor differences). Making extensions for Opera is really easy.

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