Earlier quoted context omitted.
What is "questionable" about it?
Questionable about their practices? I remember the effort it used to take to get netscape to be the browser your machine used. It was comically difficult to do, at times. So much so that I was never comfortable going for the paid Opera, as I just didn't think it would stick to my machine. It is frustrating, because I think it is largely fair to say that netscape was the worse option at the time. Navigator was largely…
Jscript was developed originally for Netscape in 1995 and was standardized in 1997. Not sure how that is a questionable land grab by Microsoft.
P.S. I wrote a jscript interpreter back in 1999 or so. It was used as a drop in replacement for Microsoft's implementation. It did not require heroic efforts to make.