alt Hacker NewsThe whole point of WebUSB is to create a tool that works with USB device, without all the risks and issues of installing external programs.
If I need to install a program, browser extension, just to work with a given tool, I probably would just prefer an ordinary program without browser at all.
Chrome approach is correct. It allows user to work with USB devices without exposing computer to the risks of installing a host software.
You have to balance the this ease of use with increasing potential attack and fingerprinting surface. Correct approach is something in the middle - a separate off-by-default setting or recommended official extension.