Created attachment 469064 [details] Demonstration of Bug Using Chrome and Safari With the <select> HTML element with the "multiple" option added (<select multiple>) and when using the Chrome browser, I am able to move a highlight within the element when holding the Command (⌘) key and pressing the Up (or Down) arrow key. With the desired selection highlighted, the option can then be selected using the Spacebar key. However, when using the Safari browser, I am unable to make random selections; only multiple, sequential options can be selected by holding the Shift key and pressing the Up (or Down) arrow key. If I try holding the Command (⌘) key, and then pressing the Up (or Down) arrow key, all previously selected options are automatically deselected.