

Side mouse buttons mapped to keyboard shortcuts, via Logitech Options.ĭecidedly less useless, but still frequently confusing. Here's a demo of the keyboard shortcut binding in action. In other words, you can't rely on this approach. Behavior can be unpredictable in some contexts depending on how the foreground application has its keyboard shortcuts configured. In contrast to every other mouse function, each side click is sent to the entire foreground application instead of the specific view under your cursor. Whenever you click one of the side buttons, you either get a distracting menu bar blink or an obnoxious alert sound. Unfortunately, while this works fine in most applications, it still doesn't feel very natural. This behavior can't be configured natively in System Preferences, but it's used in everything from Logitech's mouse software to third-party tools like USB Overdrive. The most common fix for this silly behavior is to rebind the side buttons to ⌘+ - standard, OS-wide shortcuts for navigating history.

(And unlike with an actual middle click, you can't even click to close the tabs afterwards.) Frankly, it's not clear to me why these buttons do anything at all! Except for opening new links in browsers, there's no response in any of the apps. Your browser does not support the video tag.ĭefault side mouse button behavior in macOS.Īs you can see, this binding is completely useless. Each of the four windows already has a history. The colored circles stand for button clicks, with orange representing the bottom/back side button (M4) and blue representing the top/forward side button (M5). Here's a demo of how the side buttons work in macOS by default. Once you've gotten used to this feature, it's hard to get by without it. Compare to Windows, where those same buttons allow you to fluidly navigate back and forward in practically any window with a history. By default, they act as a sort of crippled middle click, consigned to opening new links out from under you when you least expect it. If you use third-party mice with your Mac, you've surely noticed just how useless the side buttons are.
