the.com/browser
a window pretending to be a door, an OS pretending to be an app
first browserBerners-Lee's 1990 WorldWideWeb also edited pages
tab origintabbed browsing went mainstream with Firefox in 2004
engine warsmost browsers now quietly run Google's Chromium
cookie ageweb cookies were invented in 1994 by Netscape
about:blankevery browser hides a built-in blank void