I'm having a potpourri/Hat-Trick of issues after upgrading to Firefox 7.0.1

Question

The only reason I'm asking is because the three new issues occurred immediately after upgrading from the last install of Firefox to the newest release, Firefox 7.0.1
The first: for some reason I have to go to about:config to reset the "Close Tabs" part from 3 to the default 1 setting...which is having a Close Tab "X" on the tab. It means I have to right-click and select the bottom option on the drop down menu to close tabs I'm through with using.
The second: Most of the time Google Videos will not function on 3rd party web sites (Like "Documentary Storm"). I have to redirect to the Google Video webpage to watch Google featured documentaries that have been embedded in some documentary sites.
There are now more frequent error messages of "Not Responding" on websites...the screen locks up for a few seconds before going backwards or forwards (On "The Chive", "The Brigade", and many other picture or video oriented websites.) The scroll bar on the right side of the screen is also locking up which means the "Not Responding" error message is popping up for this also.
All of these are different from each other and at first thought would be issues I need to take up with tech support for the different programs I use. That is my next step, but I was very curious if anybody else was having similiar problems after upgrading to Firefox 7.0.1.
I'm not sure if a couple things might be set off by incompatible Addons. None of the symptoms jive with known incompatibility problems with 7.0.1. and with none of my Addons either. It was just very coincidental things went awry in 3 different areas that had worked 10 minutes previous to the upgrade.
Any ideas or similarity with other folk's upgrade issues?
Thanks tons for any advice given! Hoping it's something ridiculously easy. : /
Oh yeah...all other programs are up to date. Freakishly OCD about keeping current with programs.

Answer 1

Thank you for describing the problems so well. I also have been going nuts trying to restore my Itunes Library to its original (or acceptable) condition. I have a 5th gen 30G Video with about 4250 songs on it. After downloading 7 I found that every song in my Library had been dulplicated or triplicated. Then, a day latr, when I had downloaded album art, I discovered that every other song in any album I had downloaded (from Itunes or my own cd)prior to perhaps version 5 or version 6 could not be found. Luckily, I had an generation 4 Ipod with the original Library and I was able to download that to my external harddrive. I have spending pointless, arduous hours pointing Itunes to the correct file. Its faster to re-download the CD. Of course, I can't do that for any music I had bought from Itunes directly. Its weird because the name of the song is in Itunes, just the file can't be found. And why every other file? When I go into earlier (6 and before)Itunes Libraries, the music files are missing from them. Where did they go? When I try to sync my Ipod with Itunes, it takes forever because Itunes is searching for the missing files. I have tried to ask Apple support directly but I have gotten no response. Very, very frustrating! Any headway with your problems? Lisa