Today I've released version 15.2 of my web browser extension StopTheMadness in the Mac App Store. This update contains a new website option called "Mouse movement". When this option is enabled, StopTheMadness stops sites from using JavaScript to track the movement of your mouse pointer (or trackpad pointer). One benefit of the new feature is that it protects your privacy. Some sites such as Facebook are notorious for tracking your mouse movements. Another benefit is that it stops some common website annoyances. For example, it stops the little popups from appearing when you hover over links on Wikipedia or when you hover over user accounts on Twitter. The new website option "Mouse movement" is available in all browsers supported by StopTheMadness: Safari, Firefox, Google Chrome, Microsoft Edge, and Brave.
"Mouse movement" is disabled by default and listed under "Use with caution" because it can potentially cause breakage on some websites. StopTheMadness tries as much as possible to avoid causing any breakage. You may just want to keep "Mouse movement" disabled in the "Default options for all websites" and only enable it on certain sites such as facebook.com, wikipedia.org, and twitter.com. If you prefer, though, you can enable "Mouse movement" in the "Default options for all websites", and if you happen to run into incompatibilities, these are easily fixable by making exceptions in StopTheMadness. The choice is yours! StopTheMadness is designed to make the web work the way you want it to work.