Thanks , for you anticipated help 
Eddy  M . . . . .

Good day ! I have tried 2 - 3 times , to get the browser up and running correctly . I end up having to go through a 3 step process to be able to access the browser window . I have to go into the finder section on the iMac , select firefox , then a firefox window comes up and I double click on it . Then , another window comes up and states that in order to use firefox , the program has to be downloaded from the internet , I then go about and this option gets selected . Then at this point , the browser start page / window , and privacy statement page / window , become available to use . I have been unable to keep the firefox icon , on the iMac's home page / in the dock . The system at work on the iMac seems to be slowly disabling the ability for me to use firefox and even to install it properly in the first place . Thanks , for you anticipated help Eddy M . . . . .