For Firefox 3.0.5 Click on tools, click options, chose the privacy tab, UN
check "accept third party cookies"
Then run a scan with AVG to remove the third party cookies that are already installed on your computer.
Since you are using Firefox, I would suggest you remove the programs you listed (spybot, adaware, uniblue registry,spyeraser and speedup) and instead install Spyware Blaster and WinPatrol.
If you do not have these two Firefox addons, NoScript and AdBlock Plus, I suggest you get them as they are the best protection against "driveby" downloads of malware and many others.
In any case, registry cleaners are notorious for causing serious problems and are unnecessary. Uniblue products do not have the best reputation. Spybot and AdAware cannot hold a candle to Super Antispyware or MalwareBytes Antimalware and they both have free versions you can scan with occassionally.
Edited by buddy215, 15 January 2009 - 09:37 PM.