Scratchpad is deprecated as of Firefox 70 (bug 1565380), and will be removed as of Firefox 72 (bug 1519103). As an alternative, starting in Firefox 71, you can use the multi-line mode of the JavaScript console input. Scratchpad provides an environment for experimenting with JavaScript code. You can write, run, and examine the results of code that interacts with the web page. Unlike the Web Console
