@Sky Aisling :-
Ah, HELL. Sky, I am SO sorry, mate. This is my fault. @bigpup's instructions were spot-on as far as they went.....but you've downloaded the wrong item..!
Let me explain....
I've got so much Puppy stuff uploaded for the community that, for years now, I've been "juggling" several cloud a/cs with relatively small amounts of storage. Out of all these, I've had my Google Drive a/c the longest; I was a relatively early Google 'adopter', and opened my a/c with them almost 25 years ago.
It was several years before I even realised that I HAD cloud storage. I began using the Drive when I joined the Puppy community, over a decade ago. It didn't take me long to approach the storage limits, so I added a MediaFire a/c.....then a MEGA.nz /ac.....and more recently, a couple of lesser-known ones. But this is besides the point...
A few months ago, Google sent me an absolutely cracking deal on larger quantities of guaranteed storage, and I got to thinking seriously about this. By taking them up on the basic "paid" storage option, I could pretty much double the combined amount of FREE storage across all the other accounts added together, so.....this is what I've done. For the princely sum of GBP £1.59 per month, I get a guaranteed 100 GB of storage. It'll take even ME a loooong time to approach the limits of this.....and I see it as a good "investment" for the future. It's a way of ensuring that MY stuff, at least, remains available to the community for years to come.
The only downside to all this is that it's going to take me a long while to migrate everything back to the Drive. It's also going to mean that there will be an awful lot of broken and/or incorrect links across the entire forum. It'll probably take me years to catch up with them all!
Anyway, this is what I'll ask you to do:-
===========================================
You'll have to go back to using the 'old' Firefox just for a little bit. This shouldn't take long to do, though.
We'll be removing the old Firefox after this is sorted out, in any case.
What you downloaded here was actually an even older FF build than you already had (102.0.9, I believe).....for which I apologise. I'm maintaining so many browsers for the community that even I'm starting to get confused trying to remember what's been updated and what hasn't! Some have updater mechanisms, some don't.....so some need regular updating, while others can take care of themselves if they're configured correctly. D'you see where I'm coming from with this?

If you go back to the Firefox thread:- viewtopic.php?t=4083
.....you'll find the link has now been updated. I've spent the last couple of hours on all this, migrating all the Firefox versions back to the Drive and getting them in the right place. These are now all bang up to date.......and since we're starting from scratch again, you've got the choice; you can either stick with the ESR build, OR you can go with the 'mainline' build, which updates rather more regularly. This part is YOUR choice. Nobody can make the decision FOR you.....you've got to decide this bit yourself. The procedure will be identical, whichever one you go with.
I'm turning in for a few hours now, so I will catch up with you later on. If others want to help with this in the meantime, they can.....at least you've now got the correct link to go on, and these ARE all up-to-date. (That 'firefox_esr' entry you've got in /usr/bin isn't right anyway, because the 'LAUNCH' link has been re-named recently. Clicking on the existing portable's MenuRemove script, as detailed above, will remove this one.)
I'll look-in again later on, when I'm back in the land of the living! 
Mike. 