title: Sharing variables between 2 separate scripts
body: <p>I'm trying to share variable between 2 different Tampermonkey scripts running in 2 separate tabs.</p>
  
  <p>I tried using GM_setValue in one script then retrieving it with GM_getValue in the other one but without any success, so I assume there's separate storage for each script.</p>
  
  <p>Is there any easy way to do this? Am I just missing something simple? Can I somehow make both scripts share the same storage?</p>