Moving Calendar to a New Computer & Moving Data: Downloads and Add-ons

Question

Moving Calendar to a New Computer & Moving Data: Downloads and Add-ons
The handle says is all. Totally lost here & in a virtual house of cards. Please first see screen-shot.
I have the Mozilla calendar (Lightening?) program on my computer. Is this screen-shot Thunderbird or is it an add-on called Lightening that was added on to Thunderbird? I don't even recall how I acquired in a few years ago. Whatever it is I find in invaluable. Indispensable. Brilliantly conceived. A superb creation.
Notice that I have several calendars in different colors for different purposes and a long task agenda on the right. Wonderful program!! I absolutely love it! I can not afford to loose these calenders and this data. However, big caveat, entrusting my life (our lives) to it has become extremely dangerous for it's a virtual house of cards upon the purchase of a new computer. The move-over is more like a career most of us already have one. Need anyone really wonder why PC sales are down? Res ipsa loquitur.
FIRST ISSUE:
I must move this/these Mozilla program/s and calendars over to the new computer but I don't have a clue where to begin. What must I download? Thunderbird? What must I add-on? Lightening? Is this a suite of programs? All I care about are my calendars and task agendas that you see in the screen-shot -- not any email programs etc. Just this personal management system that you see.
SECOND ISSUE:
After I downloading, installing, and adding-on what I need, how do I then move (migrate) my profile (data) over to new computer?
Please know that I do know where that 'profile' and its .ics calendar profiles are stored. I am also well backed up. I just need to know how get (downloaded/install) what I need and move this over to the new computer. (See screen-shot)
First, what must I download and install and add on. Second how do I move this data/profile (a virtual Life) over to the new computer without it all coming down like a house of cards?
Please, unless it's all been documented in one location, a link to this and a link to that probably won't be very helpful. Anyone who can lay-out a simple, easy to follow plan (1, 2, 3, 4, done) will be a hero and make a significant contribution to people who dread buying a new computer for precisely these reasons. It will certainly encourage more people to use this absolutely wonderful personal management system. It's the best I've ever seen and I must keep it. But it's soooo risky.

Answer 1

Obviously the screen-shot is posted so show what I see now and want to see when I am done. Was the ''really ''not clear? Nothing could be more germane ("Germaine" is a person's name) than a visual that shows the multiple calendar dynamic and what I actually want to see nor better communicants the fact that all I want is that and not other programs in a suite – a question btw asked but not answered.
"I have no idea what the threshold issue is. Perhaps Zeno can assist you."
I now see Zeno's reply but I never got an email re: my questions and just noticed it. I will respond to him separately. But ''obviously ''the ''''threshold'''' issue is ISSUE ONE (1) exactly what, and only what, must I download and install.
Was that really not clear? That was not answered in your first reply. And since you here, later, state that Lightening does not need to be downloaded and installed how on earth could you presume the first threshold issue (question 1) was a joke?
Once again I wrote and you even quoted me “Please, unless it's ALL been documented in ONE LOCATION, a link to this and a link to that probably won't be very helpful. Anyone who can lay-out a simple, easy to follow plan (1, 2, 3, 4, done) ...”
As this exchange demonstrates, that statement has certainly proven to be correct.
You then wrote, “Read the question... the question is. How do I move my profile to a new computer? You are the one making much more of it than that. ... All covered in the link.”
What “the” (singular) of several links (plural) you provided are you talking abut? But no matter. No it was not "all" covered in the multiple links you sent which do not address the more important threshold question (1). The only issue you addressed was (2) data transfer which is secondary to the threshold issue which is ISSUE question one (1). Threshold issue/question presented: before we can go to question (2) we must address question (1).
As I stated “Please know that I do know where that 'profile' and its .ics calendar profiles are stored.”
You replied “No you do not. Local calendars are not stored in ICS files.”
First please notice you make no attempt to clarify where they are; but, once again, please read carefully. I did not say that the calendars are “stored in the ICS files” but that the .ics files ARE the calendars and I do know there they are stored.
Please see the screen-shot you claim is not germane? Each of those different colored calendars are (“not stored” in but are) .ics files that are stored in the Profile directory. In the directory c:\Users\myName\AppData\Roaming\Thunderbird is a directory or folder called \Profiles and in that directory is a file named 9w2ydrc4.default. That file IS the profile. In that profile is a folder called “calendar-data” and in that folder are the calender .ics files that are the different colored calenders you see in the very germane screen-shot. So I do know where the calendars are. So I gather that all I copy into the Profiles directory is the file (profile) called 9w2ydrc4.default.
Again, as I wrote before, I do not want a full suite with email. So what do I downloaded and install to get only what you see in the screen-shot. I don't think we ever installed a full suite before. I never saw and email program. So, again,'' asked but not answered. ''
Then you stated, I do not need to download and install Lightening (please notice, is a partial answer to my first, threshold, question you presumed was a joke) but only Thunderbird since “Lightning is already in your profile so will move with it When you actually move the profile.”
Well, since you like to use links, exactly what is your documented Mozilla authority for that hearsay? Since I posted the question I have spent much time at Mozilla. Literally everything I have seen indicates I must first download and Thunderbird. But again, I do not want to and never did, install a full suite of programs and, as far as I know, there is no Mozilla mail or other suite programs on this (my current old computer) and there never were. So, once again'', asked and not answered).''
Everything at Mozilla states I must first download & install Thunderbird'' and then ''add-on Lightening. Nothing I have seen at Mozilla suggests otherwise or states that when we want to get Mozilla calendars over to a new computer we must first and *only* download and install Thunderbird and then just copy the profile (9w2ydrc4.default) into the 'Profiles' directory. Nothing I have seen at Mozilla suggests I do not have to download and install Lightening. So please show me where Mozilla documents that. ''' Please notice that even Zeno states, “You download AND INSTALL LIGHTNING as an add-on.'''”
Since this contradicts you do tell me: what is your Mozilla authority for claim that I do not need to download and install Lightening because it's already in my profile? I see nothing in my profile that suggests Lightening is there.
Finally, I wrote to you “ ...it is axiomatic that Windows transfer wizard does NOT transfer programs but only data. You did not know this?” I only wrote that because it appeared your reference to Transfer Wizard was a response to the threshold question of (1) how to I get the program onto the new machine. But your response is''' very '''strange for you wrote “You are the first person I have encountered that thought it did more than transfer data.” Show me where I said that. I said the opposite. How on earth did you come to that interpretation as a response to my simple and very clear statement that " ...it is axiomatic that Windows transfer wizard does''' NOT transfer programs but only data.'''.”