ludo1960I have good news for you and your world domination plot. Even though I can't imagine that you're still looking for a solution in 2024, maybe other people are.
The problem for me on Ubuntu was, that I had not installed any of these browsers that it is looking for. What SOAPUI does is, that it executes the bash command:
which firefox
And it does that with every other of the browsers of this String array:
Here is the Github Link
So on linux you can fix the issue if you have one of these browsers installed and you are able to find it via the bash command "which" :)
Hope the domination plans can now continue in full throttle.
Think of me, when you reach your goal!
Cheers!