Unable to capture text from firefox.

Hello, I am unable to capture text from firefox. From a quick search that I made here, I have the firefox addon hypersnap helper 1.9 and I have disabled the option "Use hardware acceleration when available". Also I have tried install/uninstall, remove firefox addon and reinstall it. With Internet explorer though textsnap works
  
  Firefox version: 12.0
  Windoes version: 7 pro x64
  Hypersnap version: 7.15.01