For the purposes of lecturing I use the statement as the one below:
Button["Show MD simulation of a liquid", SystemOpen["https://www.youtube.com/watch?v=MqDAs2nWnE0"]]
to enable myself to open during the lecture a YouTube movie that I need. Since I then distribute the notebook with the lecture among the students they are assumed to be able to do the same.
I faced, however, the problem, that on one of my computers the site tries to open in the Internet Explorer (which I normally do not use), and, finally does not work for whatever reason. In contrast, it does not open in the Mozilla which I use, and where the movie perfectly plays.
The question is: can I specify what browser to use when executing the