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Mozilla Firefox Bootstrapped Addon Social Engineering Code Execution

This exploit dynamically creates a .xpi addon file. The resulting bootstrapped Firefox addon is presented to the victim via a web page. The victim's Firefox browser will pop a dialog asking if they trust the addon. Once the user clicks "install", the addon is installed and executes the payload with full user permissions. As of Firefox 4, this will work without a restart as the addon is marked to be "bootstrapped". As the addon will execute the payload after each Firefox restart, an option can be given to automatically uninstall the addon once the payload has been executed.

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Module Name



  • mihi
  • joev <joev [at]>



  • Universal (Javascript XPCOM Shell)
  • Native Payload


  • java
  • linux
  • osx
  • solaris
  • windows
  • firefox


  • firefox
  • x86, x86_64, x64, mips, mipsle, mipsbe, mips64, mips64le, ppc, ppce500v2, ppc64, ppc64le, cbea, cbea64, sparc, sparc64, armle, armbe, aarch64, cmd, php, tty, java, ruby, dalvik, python, nodejs, firefox, zarch, r



Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':

msf > use exploit/multi/browser/firefox_xpi_bootstrapped_addon msf exploit(firefox_xpi_bootstrapped_addon) > show targets ...targets... msf exploit(firefox_xpi_bootstrapped_addon) > set TARGET <target-id> msf exploit(firefox_xpi_bootstrapped_addon) > show options and set options... msf exploit(firefox_xpi_bootstrapped_addon) > exploit