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firefox se congela y parpadea la ventana


al momento de estar navegando, firefox se queda en ocaciones congelado y al hacer eso , da la leyenda que firefox no reponde , en la barra de titulo, y de repente parpadea, y asi es constantemente hasta que se cierra, y al momento de volver a reiniciarlo dice que el programa esta activo y que se debe de reiniciar el sistema?¿porque pasa esto?

tengo windows 7 home premium,a 64 bits y la version de mozillla que uso, es la actualizacion 5.0 la mas reciente.

Additional System Details

Sites Affected


Installed Plug-ins

  • Office Plugin for Netscape Navigator
  • np-mswmp
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Adobe PDF Plug-In For Firefox and Netscape "9.4.5"
  • Shockwave Flash 10.3 r181
  • Next Generation Java Plug-in 1.6.0_26 for Mozilla browsers
  • 4.0.60531.0
  • RealPlayer(tm) HTML5VideoShim Plug-In
  • RealNetworks(tm) RealPlayer Chrome Background Extension Plug-In


  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:5.0) Gecko/20100101 Firefox/5.0

More Information

  • Top 10 Contributor
  • Moderator
10781 solutions 97024 answers

Start Firefox in Troubleshoot Firefox issues using Safe Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

See also "Hang at exit":