Maude

Maude is a browser extension that lets you run custom JavaScript on specific websites. Maude is a browser extension that lets you run custom JavaScript on specific websites. Each maude you define matches a set of web pages (or apps) that you wish to maudify. Each maude runs whenever you visit a matching page, and can add a button for sharing to your preferred app, skip a tedious step, or resize and move parts of the page around. It's almost like having access to the source code of the pages and apps you use every day!