Restore previously opened tabs in Firefox
You make some research on a topic and you have several tabs opened in Firefox. You have to close the browser but upon the next start you would like to get back the tabs to continue the work. How to do that?
To restore the previously opened tab list, you don’t need any specific add-on. This possibility exists in Firefox. Here is what you need to do: go to Edit -> Preferences, and choose the General tab. Here you have a dropdown list on the top that says “When Firefox starts“. Choose “Show my windows and tabs from last time“, then Close. That’s all.