Not able to Run AdAware and Firefox Extensions "Gone"

Hello. I'm not sure where to begin??

Been having trouble for a week or so now, was told in the Malware Forum to come here, and that my 'registry may be corrupt' (and that, I suppose, I don't understand how to operate Vista?).

The gist of the problem seems to be 'triple-pronged' I suppose you could say.

1. I am not able to update some programs, 2., not able to run some others and 3., my Firefox extensions seem to have "disappeared" now (not sure how to get them back, have tried, but seems as if I can only run Firefox in "Safe Mode" (am sending this via IE7).

The problems "seemed" to present themselves around the time I was trying to update Nvidia Drivers (and downloaded something called "Ntune" from them - which come to think of it, could be the whole problem?) and/or when I "attempted" to download the Eval version of WinZip (would not run).

Here is a link to my initial query, I am now understanding that there is no problem with AVG (was somehow worked-out??).

http://forums.majorgeeks.com/showthread.php?t=155128

Thanks.

 

Thanks guys. I'm sorry, I just don't understand a lot (MOST) of this stuff.

I looked through (read some) of the Firefox diagnostic page - but just not sure how to proceed (in an orderly fashion).

The FF extensions (add-ons?) show up in Tools>Add-ons>Extensions - they're just not loading with my browser.

 

You all are giving me a lot more credit than I can take. I really don't understand the troubleshoot page instructions from Mozilla. I am also not sure exactly when I downloaded the Ntune thing from Nvidia, therefore not sure which Restore Point to choose. Is this (ntune) program known to be problematic in some way? Could this be the cause of my FF add-ons/extensions not loading? Again, I am also not able to get Ad-Aware to run at all.

I also don't know anyone who knows any more about this stuff than I do (sad, huh?). I currently live in a very rural, isolated place.