Simply redo what you did to make it go away. Click Tools> Toolbars > Favorites Bar; this will put a check beside it and the toolbar will display again. Right click on the individual items to get a...

That is a good idea but I'd recommend getting the latest drivers from BFG (http://www.bfgtech.com/driverdownload.aspx) or nVidia (http://www.nvidia.com/Download/index.aspx?lang=en-us) rather than...

Possibly; it would depend on the source of the addon.

I have only ever used addons from mozilla.org (https://addons.mozilla.org/en-US/firefox/) after reading the reviews, and so far so good.

Try going to Tools(in Firefox) > Options> Content tab; At the bottom you should see Languages, click on the 'Choose' button and select French and Remove.

I too have had similar problems; Flash player seemed to be the culprit in my case. I now find that FFv3.08 (and Flash 10.0r22) is much more stable.

I'll stick with Firefox myself. (http://news.cnet.com/8301-13860_3-10030522-56.html?tag=txt)

The restore to factory settings uses a disk image that is located on a separate(sometimes hidden) partition on the hard drive. You'll need to find out if this different computer has such a factory...

Have you cleared the browser's cache and cookies?

For Firefox it's under Tools>Clear Private Data.

Did you go to their link to delete excite cookies (http://registration.excite.com/delete_cookies.jsp) and try logging in again ?

Have you tried clearing your cache files ?
Under Tools > Clear Private Data; or Ctrl + Shift + Delete

Uninstall Firefox from Add/Remove Programs.

Use Windows Explorer to confirm the deletion of the installation directory. This is usually 'c:\Program Files\Mozilla Firefox' and if memory serves the...

Firefox 1.03....Fixed.

Also Thunderbird is a good alternative if you want to use something other than Outlook Express for email.

Firefox (http://www.mozilla.org/) ;) Just kidding :D No really... :confused:
Don't use IE much myself, but from what I've seen the Google toolbar (http://toolbar.google.com/) seems popular.

You can get your ethernet adapter drivers here (http://www.fujitsu-siemens.com/support/downloads_1.html)
Not sure about your USB.