Firefox Portable

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?

Hallo FF-Freunde,
auf meinem Desktop läuft FF 77.0 prächtig.
Nun will ich mittels AOMEI-PE Builder 2.0 mittels WindowsPE eine Sicherungs-ISO erstellen und dabei eigene Tools einbinden, u.a. eben FF portable.
Einige andere Tools konnte ich erfolgreich einbinden; die Integration von FFp funktioniert auch (auf der Basis von "FirefoxPortable_77.0_German.paf.exe").
Jedoch wenn ich dann den generierten USB-Stick oder eine CD benutze, funktioniert alles gut, auch meine anderen Tools, nicht aber FFp.

This involves Firefox Portable 77.0.1. I've used the portable version for a long time and never had any problems with it or any software from this website.

Norton AntiVirus reports the download safe. But after I install it on my local drive, and Norton runs a scan, it reports PUA.Gamevance in the registry (approximately 40 registry entries). That is amazing since the portable version doesn't write to the registry. Or does it?

Total Virus result
for FirefoxPortable_77.0.1_English.paf.exe:
https://www.virustotal.com/gui/file/cf55b6fc9cfffdd36d236a428e9118e90cb4...

for FirefoxPortable_76.0.1_English.paf.exe‬:
https://www.virustotal.com/gui/file/98bae072f2b0e7c4e0f90a005db6a993d0fd...