You can set those pages as multiple home (startup) pages. Easiest is to open only these pages in tabs and then use "Use Current Pages" button. Firefox supports multiple homepages separated by '|' (pipe) symbols. *https://support.mozilla.org/en-US/kb/how-to-set-the-home-page Another possibility is to add those pages to the target line of the desktop shortcut. *https://wiki.mozilla.org/firefox/CommandLineOptions