launch.ica files opening with Adobe Reader not Java

I was trying to set up to get remote access to my server at work and one step was missed (loading the citrix software onto my computer), so when I tried to open it, it created a launch.ica file. I tried to open the file since it would not open automatically and selected Adobe Reader to open it. After we discovered the missing step and installed the citrix software on my computer, when I try to gain access (through a website on Mozilla Firefox) the file continues to try to open it in Adobe REader, rather than Java. I uninstalled Adobe, opened the file and was able to gain access, but when I re-installed Adobe, the launch again uses Adobe. Is there any way to get the .ica files disconnected from Adobe?