Firefox does not open after first try

Hi, You can try to right-click and Unpin the icon from the taskbar and then Pin it back from the Firefox [http://kb.mozillazine.org/Installation_directory installation directory], usually C:\Program Files (x86)\Mozilla Firefox\. Another possible reason could be that the installed security software is delaying the start (McAfee??). You can try to fully trust Firefox and its related processes/files in the different McAfee configuration areas (e.g. process/sub process control, file modification, HIPS etc.). You can also try to disconnect the internet connection, temporarily disable McAfee, restart the computer and check. [http://kb.mozillazine.org/Firewalls#Firewall_pitfalls Pitfalls] [http://kb.mozillazine.org/Firewalls AV/Firewalls Configuring AV/Firewalls] [https://support.mozilla.org/en-US/kb/Firewalls AV/Firewalls configuration]

Well yes i tried the pinning before and it didn't work. Yes i do use McAfee but couldn't customize it with Firefox :\