Firewall rule

My computer automatically updated Adobe Flash player to the latest version tonight (first time it’s done it automatically in a long time). Anyway, I noticed in my security history that there was a firewall related entry for Flash Player Installer. I try to get more details of the file’s rule but it says file not accessible or founds. The file is supposed to be SysWow64/flashplayerinstaller.exe (yet I can’t find this file on my system)

Is this a mistake by Norton?