The HUD is a completely new interface that brings information and functionality from ZAP into your browser.
For more details see:
The HUD works equally well with ZAP in desktop and daemon modes.
As many people use ZAP in daemon mode for automated testing the HUD is disabled by default in this mode.
The HUD add-on adds new ZAP command line options which enable the HUD in daemon mode and launch a browser preconfigured to proxy through ZAP and ignore certificate errors:
Any combination of these parameters will launch a browser with the HUD enabled.
You can also enable the HUD in daemon mode without launching a browser using the ZAP command line option:
ZAP is a community project and so we are always very keen to hear from anyone who'd like to contribute, just post to the ZAP HUD Group
This is still early days for this add-on :) Some known issues include: