One of the main benefits of WebExtensions support is that Firefox users will be able to install the majority of extensions for Google Chrome; at the very least, it makes it easier for developers to migrate their extensions from Chrome to Firefox. This guide shows you how to use an extension for the Firefox web browser to, more or less, convert Chrome extensions on the spot into Firefox add-ons that you can use in the browser. Install Google Chrome extensions in Firefox Note: While you can install pretty much any Google Chrome extension in Mozilla Firefox 57 or newer, you will notice that not all of them work right now. The main reason for that is that WebExtensions is a work in progress and that support is not fully complete yet. Also, some WebExtensions make use of Chrome specific features that Firefox does not support. Attention: Chrome Store Foxified's author -- in September 2018 -- that he won't work on the extension anymore. While it still works right now, chance is that it won't in the future.