I would want this to happen always, but are you sure you have Chrome/Firefox/etc installed? If not, I don’t think Roblox can simply install the browser and use it.
Didn’t happen to me. I have a computer with Chrome, Firefox and I.E. installed but if I click that same prompt, it opens some sort of Firefox, because that warning won’t appear.
Does your account have Soothsayer permissions or does the client have Roblox Internal enabled.
I’ve only ever known OpenInBrowser to open the native browser if you have either of these settings, it’d be a bit weird if the regular client started doing this again since the behaviour is deprecated.
Or, Roblox might have enabled something in the latest update and I just missed it.
With windows you can embed an IE frame without non-windows or non-microsoft libraries like how you can use apple libraries to embed WebKit. Roblox would need to use CEF or just directly include WebKit/Quantum/Gecko/Blink8/Servo or any other browser engine in the source along with a js engine. CEF is just chromium but embeded so it includes javascript which roblox requires just like the built in WebViewer for windows apps is just IE but embeded.
Oh yeah, apps for windows 10 can use UWP to just use the non-chrome edge engine. The roblox windows player supports back to Windows 7
It is because Roblox embes Internet Explorer into that window. Solution is using CEF instead.
For a billion dollar company, this should be easy to fix considering i made a CEF web browser before.
Or, roblox could just open the browser.