Firefox 3.6.4 (code-named "Lorentz" after Lorentz National Park) incorporates out-of-process plug-ins (OOPP), which isolates execution of plug-ins like Adobe's Flash or Apple's Quicktime into a separate process.
Firefox 3.6.4 (code-named "Lorentz" after Lorentz National Park) was released on June 22,2010. The Windows and Linux versions incorporate out-of-process plug-ins (OOPP), which isolates execution of plug-ins (Adobe Flash, Apple Quicktime and Microsoft Silverlight by default) into a separate process.