Another great Firefox example is the shortcut for "close all the tabs" (ctrl+shift+q), which also happens to be adjacent to "go to previous tab" (ctrl+shift+tab

Another great Firefox example is the shortcut for "close all the tabs" (ctrl+shift+q), which also happens to be adjacent to "go to previous tab" (ctrl+shift+tab). Depending on your preferences, there won't even be a warning popup if you accidentally press it.