Firefox api - access from my program

Question

Is it possible to access Firefox info from my program? Specificly I need to read URL of opened site in active tab. Is something like this possible?

I guess I can write extension that will allow me to do something like this, but I wanted to know if it is posible with some FF api...

Answer 1

Using the MozRepl Firefox extension you can read the current Firefox url (among other things) from telnet. You could then use AutoHotkey to access telnet or via your own program and get the current url.

It seems you can also access the Firefox url via DDE