No-Alt-Mouse-Wheel is a Chrome add-on developed by Lars Kiesow. This free program is designed to prevent mouse wheel scrolling when the Alt key is pressed.

One of the main features of No-Alt-Mouse-Wheel is its ability to disable scrolling with the mouse wheel when the Alt key is held down. This can be particularly useful in situations where system events are already bound to scrolling with modifier keys. For example, if you have a window manager's desktop zoom accessibility feature enabled, No-Alt-Mouse-Wheel prevents accidental page-scrolling in Chrome every time you use the zoom feature.

By preventing mouse wheel scrolling with the Alt key, No-Alt-Mouse-Wheel provides a more seamless browsing experience for users who rely on modifier keys for other system functions. With its simple yet effective functionality, this add-on is a valuable tool for those looking to customize their scrolling experience in Chrome.