StopTheMadness updated with new font substitution feature

November 14, 2022
By Jeff Johnson of Underpass App Company

My web browser extension StopTheMadness is updated today in the iOS App Store and Mac App Store. The biggest change is a new font substitution feature! Thanks to John Gruber of Daring Fireball for inspiring the feature and for linking to my blog post a few weeks ago. The blog post described how the custom style element feature of StopTheMadness can add @font-face rules to web pages in order to substitute one font for another. But that's all very technical, requiring the user to write CSS. The "Fireballing" generated a lot of feedback requesting a simpler way to substitute fonts on the web, so I started work on that immediately, and now the feature is available! It works in all web browsers supported by StopTheMadness: Safari for iOS, Safari for Mac, Firefox for Mac, and Google Chrome for Mac (as well as all Chromium browsers).

Today's updates include some other nice improvements and fixes. On iOS:

On Mac:

And on both:

Most of what I do in StopTheMadness is inspired by user feedback, so please keep it coming!