Unique user-defined name in the titlebar for each open window

[mozilla]

Unique user-defined name in the titlebar for each open window

[xabolcs]

With nsIDOMWIndowUtils there is chance to implement something like the requested feature.

Gecko 2 introduced windowID which can be queried:

var util = win.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
              .getInterface(Components.interfaces.nsIDOMWindowUtils);
var windowID = util.outerWindowID;

See windows related Code Snippets on MDN!
For Gecko 1.9.2 we could gracefully fail and return undefined for example.

Keeping the window specified titles could be in a hash:

var uniqueTitles = {};
uniqueTitles[windowIDOfwindowOne] = "Something specific string";
uniqueTitles[windowIDOfwindowTwo] = "Window 2 specific title";

With hash, storing would be more easier: serialize it with JSON into a new preference, example: nightly.titlebar.uniqueWindowTitles.

An issue could be the setting of the window specific string.
It would be nice if user would have the ability to set the specific strings for all window independently from the recent window.
For example dorando's keyconfig does have a dropdown list.

[whimboo]

Using that method I don't think it will be persistent. At least when you restart the application all of your windows will get a new id. So probably we should make use of session store and attach a property onto a window. That would be persistent across browser sessions.