In Firefox you can easily save a group of tabs together. When (re-)accessing this group, the 'cascading' bookmark menu shows each individual bookmark (and under a line) it says "open all in tabs"

I'm looking for a way to launch those tabs without going up through the bookmark menu. Possible options:

A) Record a simple macro w/ any number of "superuser" utilities*

('A' is not the preferred option, since many 'little-macros' are hard to keep track of)

b) Use Autohotkey (similar to option 'A' and more flexible once you learn the basics)

c) How does Firefox load all those tabs? The info must be stored somewhere (as a type of URL??)

Quick Summary:

The moment I click on "open all in tabs", I am clicking on something very similar to a hyper-link. How do I find the content (exact code) of that 'hyper-link', and / or "How do I easily launch the tabs?"

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New EDIT #1: I'm looking for a way to launch those tabs without going up through the bookmark menu, or cluttering the bookmarks toolbar which I hide anyway :o)

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New EDIT #2: I tried to keep the question simple and not mentioning Autohotkey programming. The objective is to launch all tabs using a button on an AHK gui.

When grawity said, "It's just an ordinary folder containing ordinary bookmarks," he (she) reminds me I can easily find the folder / Now how to launch to urls inside that folder?

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FYI: (Basic-level) AHK works like this:

; Open one folder
ButtonWinMerge_Files:
Run, C:\Program Files\WinMerge\
Return

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; Use default web browser for one link
ButtonGoogle:
Run, http://google.com
Return

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Question still open:

The moment I click on "open all in tabs", I am clicking on something very similar to a hyper-link. "How to 'replicate' the way Firefox launches the tabs with one click?"