When I run "Mobile Web Preview in Browser" from TiStudio and the app opens in FireFox, I get a white screen that says:
*File /index.html not found*
and nothing else. If I then reload the page with the very same URL, everything works fine. But almost everytime I launch from the button with TiStudio, I get the above error. This is the case with all apps I attempt to build for mobile web.