CANNOT properly update from 7.0 to 7.01. WHAT is going on?

Question

Hello!
I notice that FIREFOX has been releasing browser updates quite frequently as of late. I have been updating my browser as they come along ... until 7.01 came out. It not only does NOT fully install on my IMac (iMac 10,1 - 3.06 GHz Intel Core 2 Duo Processor - less than 1 year old) ... but is being incredibly vexing:
I did the usual update process for 7.01 when presented with the SOFTWARE UPDATE WINDOW (as I recall; less than 1 WEEK after I rcvd an UPDATE for 7.0, which installed normally enough) - but the 7.01 dropped a Firefox icon on my desktop, which I put in my APPLICATIONS FOLDER. This did not MOVE the icon. Inexplicably it only COPIED it to the folder - leaving a FIREFOX icon still on my desktop. I then put THAT ONE in a special FIREFOX folder that I keep for general Firefox info, etc. SAME RESULT ... only COPIED icon to that folder. ALSO a Firefox "volume" appeared on my desktop. Normally these disappear upon exiting my system and coming back. in THIS CASE, both the Firefox ICON - AND the VOLUME icon remain - for weeks now. I can't REMOVE them without taking them to the trash, which I am loathe to do, fearing I would LOSE FIREFOX COMPLETELY from my system.
I find that FIREFOX 7.o is what my system is still running - it does not seem to recognize the 7.01 that arrived, in any way.
Meanwhile, I continue to get the SOFTWARE UPDATE (for 7.01) window appearing when I open my (7.0) browser). I tried AGAIN to install from that - and only got MORE icons growing on my desktop.
By the way, I have a YAHOO/ATT eMail - AND a YAHOO Homepage. YAHOO often causes interfering and/or site-specific browser problems. THIS may be a factor. I have NO idea.
MY GUESS is that something(?) did not complete - or get recognized in the INSTALL PROCESS (with the install window/process/move to app. folder sequence.
WHAT I NEED is:
1) to be able to successfully, completely UPDATE to 7.01 -and
2) have these fool icons quit reappearing (and multiplying upon dragging them to folders).
I assume that once 7.01 IS fully installed, that all of this nonsense will stop; I will not see "NEW UPDATE TO 7.01" windows appear / I will NOT have "sticky" icons crowding my desktop / my SYSTEM WILL then SHOW "FIREFOX 7.01" as my current browser.
WHAT IS GOING ON? WHAT DO I DO FROM HERE?
I am at a complete loss (baffled, frustrated, kicked to the curb).
I am not familiar with sophisticated programmer / developer terms/shorthand. PLEASE, anybody answering this (thankyouthankyouthankyou!!!) write clearly and simply, so I am not stumped by being told to do something that I cannot figure out the meaning of ... I see that kind of answer in some other posts I viewed, trying to find what to do, though none of those posts were exactly my scenario.
All I want to do is get 7.01 to fully install, as/per the usual installation package process that appears when an UPDATE is downloaded.
THANKS!!
p.s. assuming that I will get an eMail when I get a response.
I will NOT be able to FIND this - or whatever the correct page is- to hunt daily for responses.
My eMail is:
[email protected]

Answer 1

Re:
"Do you have a user.js file in your profile, and did you change the user-agent that gets displayed by Firefox? The setting looks like:
general.useragent.override "
I have no idea if I have a 'users.js file' anywhere; let alone in my 'profile' ...WHAT profile? where?? why? I have never needed to know anything about a users.js file to download or update a browser of any kind.
Nonetheless, IF a 'users.js file' is something that exists, behind the scenes, appearing something like "general.useragent.override" I would have no idea how to locate - or check whether or not I have one. You say it would be in my "profile". A "Firefox" profile? A MAC system profile? A hard disk profile? A Utilities profile? I have no idea what / where this may be.
I will try the suggestion by cor-el: Download a 7.01 - SAVE the dmg (slippery suckers, hard to find again, once arrived). Then I will isolate that in a special folder and remove my current FIREFOX from my computer; and open/install the 7.01 clean.
The only problem is I don't know exactly WHAT is mucking things up for the 7.01 to fully install. THEREFOR it seems I will have to search out and destroy all the parts of my CURRENT browser (icons/volumes/files/ et al) ...hoping that I DO remove the nasty part - and that I DO NOT remove something I need to either (A): keep my extremely deep bookmark files and/or (B): allow 7.01 on my system (as it IS an UPDATE - if I have NO "7.0" - can a "7.0.1" load / install without something already in the 7's to work from?)
I was hoping to avoid this 'search and destroy' raid on my Firefox, for the above reasons; but since I have NO idea what the "user.js file" or its attendant "profile" are, I see no alternative. Unless somebody has a better idea before Monday; I'll go in there and tear it out - after bringing in the dmg of 7.01 first. It'll be a crapshoot; maybe I'll luck out. I HOPE so, 'cause I really hate Safari. Wheeeeeeeeee!