Added Firefox 2.x to browser blacklist for Agent interface.
Added Firefox 2.x to browser blacklist for Agent interface.

thorsteneckel/otrs,nilei/otrs,MBRG/otrs,PortgasDAce/otrs,rudy500/otrs,brandonshults01/otrs,xhoy/otrs,nilei/otrs,vlascoder/otrs,crythias/otrs,brandonshults01/otrs,eliasp/otrs,crythias/otrs,rudy500/otrs,balazj/otrs,StCyr/otrs,eliasp/otrs,PortgasDAce/otrs,moritz/otrs,thorsteneckel/otrs,mburggraf/otrs,oiami/otrs,mburggraf/otrs,rudy500/otrs,nilei/otrs,mburggraf/otrs,xhoy/otrs,StCyr/otrs,oiami/otrs,crythias/otrs,capeit-tto/otrs,vlascoder/otrs,PortgasDAce/otrs,mbeijen/otrs-1,xhoy/otrs,balazj/otrs,noritnk/otrs,capeit-tto/otrs,xhoy/otrs,balazj/otrs,muehlbauer/otrs,s7design/otrs,mburggraf/otrs,capeit-tto/otrs,s7design/otrs,MBRG/otrs,moritz/otrs,moritz/otrs,moritz/otrs,balazj/otrs,nilei/otrs,s7design/otrs,mburggraf/otrs,oiami/otrs,rudy500/otrs,linearregression/otrs,s7design/otrs,noritnk/otrs,mbeijen/otrs-1,StCyr/otrs,balazj/otrs,muehlbauer/otrs,nilei/otrs,thorsteneckel/otrs,crythias/otrs,StCyr/otrs,brandonshults01/otrs,PortgasDAce/otrs,eliasp/otrs,brandonshults01/otrs,brandonshults01/otrs,eliasp/otrs,muehlbauer/otrs,mbeijen/otrs-1,MBRG/otrs,xhoy/otrs,thorsteneckel/otrs,noritnk/otrs,thorsteneckel/otrs,linearregression/otrs,s7design/otrs,MBRG/otrs,PortgasDAce/otrs,eliasp/otrs,linearregression/otrs,crythias/otrs,moritz/otrs,muehlbauer/otrs,oiami/otrs,muehlbauer/otrs,StCyr/otrs,rudy500/otrs,vlascoder/otrs,linearregression/otrs,linearregression/otrs,oiami/otrs,MBRG/otrs