title: Install Firefox extension using windows registry
body: <p>I have followed the instructions <a href="https://developer.mozilla.org/en/Adding_Extensions_using_the_Windows_Registry" rel="nofollow noreferrer">here</a> [MDC - Adding Extensions using the Windows Registry], 
  but haven't been able to get Firefox to automatically install my extension when I restart it.</p>
  
  <p>I have written an application that is half windows service and half FF extension. I have built an installer and want it to be able to install the Firefox extension along with the service.</p>
  
  <p>So far I have tried the following things:</p>
  
  <ul>
  <li>Removing my dev version of the
  extension from FF first</li>
  <li>Removing the
  pointer file to my dev version of the
  extension from my profile dir</li>
  <li>Removing my "dev" profile completelly
  so that FF only has a "default"
  profile</li>
  <li>Running FF without the
  -no-remote and -P switches I setup for the dev environment</li>
  <li>Trying the
  key in both HKEY_CURRENT_USER and
  HKEY_LOCAL_MACHINE</li>
  <li>Carefully checking
  the ID and Paths I have used</li>
  <li>Trying
  Paths that don't include spaces</li>
  <li>Trying the Paths in Quotes</li>
  <li>Trying a
  trailing \ at the end of the path</li>
  <li>Trying the .xpi filename at the end of the path instead of just the dir name</li>
  <li>Building the XPI using the Extension
  Builder plugin instead of manually
  (although my manual build would
  install just fine if I dragged it to
  FF)</li>
  </ul>
  
  <p>I'm using FF3.5.2 on Windows 2003 Server
  (could it be a W2K3 install security issue?)</p>
  
  <p>UPDATE: Now tested also on WinXP FF3.0.11. Same problem.</p>