title: python: howto open firefox (osx)
body: <p>I need to associate to a hyperlink the command to execute firefox.
  Seeing as I can do it in a terminal, I used</p>
  
  <pre><code> os.system("/Applications/Firefox.app/Contents/MacOS/firefox"+' \"'+arg+'\" &amp; 2&gt; /dev/null')
  </code></pre>
  
  <p>but this doesnt work at all: I get a "Firefox is already running" window - while under Linux my url gets loaded in a new tab.</p>
  
  <p>I tried the -remote switch, without effect</p>
  
  <p>Any suggestions?</p>