Mouse4 Go-Back Block is a Chrome extension designed to prevent accidental browser go-back navigation triggered by the Mouse4 button. This tool is particularly handy for users who have Mouse4 assigned as a Push-To-Talk key in VoIP applications like Discord or Teamspeak. It effectively blocks the unwanted Mouse4 presses, ensuring a seamless browsing experience without unexpected page navigations.

Created by MarkM, the developer behind Previews (For TTV & YT), Mouse4 Go-Back Block offers a practical solution for those seeking to avoid unintentional browser movements. It's a free add-on categorized under Browsers and specifically falls under Add-ons & Tools. Note that the extension may not work on certain protected pages within Chrome, such as those starting with chrome:// or chrome-extension://, as well as on PDF documents or pages with disabled Javascript.