This option adds a link to the macro on your computer to your bookmarks. You can use iMacros as super-bookmarks: To open the bookmark dialog right-click on the macro that you want to bookmark and select the 'local' option.
Firefox 48 to 55 only if multi process (e10s) is disabled. Important: iMacros for Firefox versions 8 and 9 do not work with Firefox 56 and above. No administrative rights are required for the installation. IMacros End User License Agreement Installation