Firefox Portable

One of the reasons I like Firefox Portable over regular Firefox is that it allows me to restore my previous session, where lots of information and tabs that I am using, with it's passwords and all that, are already loaded.

The problem I am having is that sometimes, when I have to exit and load FF portable again I get the message that there was a problem and need to reload. An the problem is just there: when I reload all my previous sessions and all its data disappeared.

Firefox portable 68.10 ESR is available to download on here but not Firefox ESR 68.11 and ESR 68.12.
Is there a different link to download those two versions?

I've been using Firefox Portable 65 for awhile and just went to Firefox Portable 72. It works perfectly except I can't seem to open links in 72 - it still wants to use Portable 65. I have tried changing the fle associations to 72 and it still opens 65. They are in two separate folders. I don't want to use 65 but I don't want to totally delete it. How can I unregister it for urls and html and so on and have 72 open them instead? Firefox defaults are grayed out in Windows (7) default programs and are all on my old Firefox 56 (desktop type) that I use from time to time.

If I use Firefox portable on mobile.de I see no pics. This I got on an update. Now I try to use the old Version. I have found an old copy
that I am using on C:\FirefoxPortable\. To get no Update message I have created a fiele policies.json and saved it in the folder
C:\FirefoxPortable\App\distribution
the contend is:
{
"policies": {
"AppAutoUpdate": false
}
}
This works, I do not get a Update message.

I removed gtk3 from my distro and Firefox portable would still run/work....

However The Tor browser which is also portable does not run without gtk3 and it is based on Firefox ...

what is going on here ?

I run a dual boot system - Ubuntu and Win10. Most of my time is spent in Ubuntu so my skills for transferring FF profile data into portable FF are a bit rusty.

Today I made new FF portable app "installations" on the Win10 system. I copied active profiles from the Ubuntu system and pasted them into the Win10 FF portable apps folders.

I'm using Firefox Developer Edition v79, and I've been getting plagued by a particular issue for a while, but only recently found a bug report that clued me into the cause - and it's specific to the portable version only.

Preface:

Firefox prohibits extensions from working on their own site (specifically, addons.mozilla.org). In order to allow extensions to work on this protected site, you have to do the following in about:config:

Hello to all. People advised trying to ask on this forum. Maybe someone can help me.
This is: https://support.mozilla.org/en-US/questions/1295098#answer-1333341 a link to a question I created where I already asked him, but so far no one has suggested a working method.
Question itself:

Hello,

I've downloaded and installed Mozilla Firefox, Portable Edition, Version 78.0.1 for Windows, in English.

I've tried to change its taskbar icon following the steps described at https://portableapps.com/node/61043, but it doesn't seems to work for this version.

I've also tried a lot of different path, sizes, and format variants without any success:

I've got the annoying instance where on every opening of the browser, there is always a 'notification' that updates are being installed.

It flashes for 5 or so seconds, then the browser opens as normal.

Copied the installation to a different drive to test, and it opened fine, with no 'update' on start.

So I'm assuming that there is some sort of residual file that needs to be deleted in some sort of hidden folder.

Where would I find such hidden folders?