The old setting was this: (1) In a new tab, type or paste '''about:config''' in the address bar and press Enter/Return. Click the button promising to be careful or accepting the risk. (2) In the search box above the list, type or paste '''ui.c''' and pause while the list is filtered (3) Double-click the '''ui.click_hold_context_menus''' preference to switch the value from false to true However, that doesn't seem to do anything on a touchpad. The workarounds are: * Hold down the Ctrl key and click the link * Tap the link with two fingers on the touchpad instead of one