Can I move all or most of my add ons & settings to Ubuntu

The OS is called Ubuntu, not umbuntu.

I suggest you run the liveCD and add the addons. Running that amount of addons will make Firefox bloat more than it already does. Shockwave is Windows only so you will lose that for sure.

Picasa has been dropped from Linux but should run in Wine.

There are many native torrent clients for Ubuntu, so utorrent wil simply become something else (transmission is installed by default) there is a utorrent for Linux but it is only accessible via web UI and it is not simple to install. I wouldn't bother with it.

RAR is handled by fileroller once you install rar and unrar packages from software centre.

You will be able to get all of your firefox settings back if you save them properly. The Windows programs and plugins and addons will not migrate - get these after you have set Firefox up. The other programs are specific to Windows. Most of them you will not need or there are Ubuntu replacements. Your Windows documents will all be able to be read by Libreoffice more or less OK. Formatting may be odd in some, and you may want to back up all the Windows fonts first in case you want any of them.

The really important thing is don't assume any of your data or settings will be safe. Make sure you can restore everything. Also, boot from the live-DVD and take the option 'Try Ubuntu' before you install to make sure everything runs properly on your machine.

Firstly many thanks to the two of you for your very fast answere
Andrew just a slip I am well aware they call it Ubuntu(thanks for pointing that out)
many thanks for all your kind suggestions

Barry many thanks for your suggestions..do you know how i save them properly ??I have come across this issue before!
"You will be able to get all of your firefox settings back if you save them properly"

I have ammended my original list if you could just write in yes /no/maybe that would be fine
also I would like to install Ubuntu straight away,can it just be downloaded and replace win 7
and how do I keep a live lan connection as I only have FF?

Once again many thanks I am not young anymore and it takes me longer to understand fully...

                                                                                            Fire Fox-ADD-ONS:-
                                                                                             -----------------------------
                                                                                           Quicknote (would like)
                                                                                           SAMFIND BOOKMARKS (really wish to keep)
                                                                                           ADD COOKIE OPT OUT (not critical)
                                                                                           DOWNLOAD STATUSBAR(not critical)
                                                                                           EBAY BUTTON (would like to keep)
FOX CLOCKS (WORLD CLOCKS)(not critical as long as alternative available?))
                                                                                           GMAIL WATCHER (would like)
                                                                                           GREASEMONKEY (would Like)
                                                                                           LAST PASS (PASSWORDS) (Really need this?)
                                                                                           IM TRANSLATOR (would like if possible)

                                                                                            THEME & FONT CHANGER (would like it but not critical)
                                                                          lIST-iT (would like list that can be logged in to worldwide if poss?)

                                                                                         FF-PLUG-INS:-

                                                                      SHOCKWAVE (DEAD?)

                                           (the following Ok if alternatives available?)
                                                                            PICASA (PHOTOS)
                                                                            FOXIT READER
                                                                            VLC
                                                                            JAVA
                                                                            FLASH

                                                        OTHER-PROGRAMMES:- running on Win 7
                                                        ----------------------------------------------------------------

                                      #IMMUNET 3.0 (will I need this?)
                                      #FIREFOX13
                                      #SPYWAREBLASTER (will I need this?)
                                       AVG TUNEUP (will I need to re load this?)

                                                                (# Following not critical?)---->
#PICASA 3
#DOCUMENTS(WIN TO LIBRE)
#WIN RAR
#PICTURES assume I just save pics & current docs to external drive?beofre moving to ubuntu?)
#LOGITECH MOUSE

Steven, about your Firefox preferences, you can go to edit>preferences>sync and set it up. I don't know how much of your data is synced with this approach, but you can check it with a live version of Ubuntu like Andrew said. Just set the sync up in Windows, run an Ubuntu liveUSB, configure sync in Ubuntu, and see if all your stuff is in there. If it's not, you will have to manually add what's missing. All your add-ons should work on Ubuntu.

You don't need Spywareblaster, Immunet, and AVG, as you won't be susceptible to Windows malware with Ubuntu. You can install Java, Flash, VLC, and Rar right from Ubuntu Software Center. There's a version of uTorrent for Linux, but Ubuntu comes with Transmission, which is also a very nice Torrent software; as to Foxit Reader, there's also a Linux version available, but Ubuntu also comes with a pdf reader, Evince; and Shotwell is the default Ubuntu picture manager and should substitute Picasa. Your Wi-Fi and your mouse should also be detected automatically by Ubuntu. If it's not, we're here for you! =)

But don't wipe Windows out straight away. You may need it for now in your transition. In the Ubuntu installer you have the option to install it alongside Windows. It should be your best option for new users.

Enjoy your freedom with Ubuntu! Cheers!