The option is also in the toolbar in the dropdown next to the "play" button where you choose IIS Express or whatever else.
On Wednesday, 30 August 2017, Greg Keogh <gfke...@gmail.com> wrote: > Folks, a couple of weeks ago, after upgrading to Visual Studio 2017, I > asked if anyone could guess why debugging any web app produced a "not > found" popup for the start page. I finally discovered it was caused by Edge > being the default browser instead of Internet Explorer. By sheer luck, or > some mental burp I right-clicked the start page node in the solution > explorer and clicked "Browse With ...", and there I noticed Edge was the > default. > > For weeks I suspected file permissions, IIS, pool attributes, account > privileges, marriage equality, anything ... there was absolutely no clue to > be found in any messages or web searches. It turns out the cause was in a > little-used context menu right under my nose all the time. > > *Greg K* >