If you find yourself doing repetitive tasks in your browser, it may be time to try writing an extension for Chrome or Firefox—with just minimal coding knowledge required.

A file with a .URL extension, aka website shortcut, is launched in a default browser when double-clicked. The .URL file can be created by quickly dragging the URL from the address bar to any empty ...

First, create a new folder to hold everything. Copy both the contents of the deck.js zip file you downloaded (the files, not the folder) and the two starter kit HTML files.