BleepingComputer.com: Window Vista 64 bits

I have been using Firefox to get on the internet. As of yesterday I have been having problems downloading pictures on my Ebay listings and when I run my Avg Anti-virus free edition (anti-virus, anti-spyware) I'm getting many (result/infection).. It seems that firefox is always running even after I log off the internet... I do not have any problems if I use Microsoft explorer...

Has the firefox explorer been compromised? Should I be concerned about my computer??? I uninstalled firefox--But had to first close it out in the task mananger-end process...then uninstalled it... Any assistances would be very helpful....
Thank you---

I've had some recent issues with Firefox on my 64 bit system. That being said, it can't hurt to check for viruses with an independent scanner (in case yours has been compromised). Try a couple of the free one's at this link: http://www.bleepingcomputer.com/blogs/usas...?showentry=1252

Thanks for the information... I ran Mcafee, AVG, and trend micro housecall.... Nothing..... It's clean.. After running these adwares. I did what was stated on the home page of bleepingcomputer -To protect yourself from these types of attacks it is suggested that you disable JavaScript from running within PDF documents. For the vast majority of users, this will have no affect on the reading of legitimate PDF documents. It will, though, give a warning when a PDF document is trying to execute JavaScript and you can then decide if you would like to allow it. To protect yourself, open Adobe Reader and once it is open, click on the Edit menu option and then select Preferences. When the preferences screen opens, click on the JavaScript category. Then uncheck the checkbox labeled Enable Acrobat JavaScript. When done, your screen should look like the image below. Then press the OK button to save your settings.
I'm hoping all is well--But I do miss my Firefox Explore--- Have you had the same problem as me--Window Vista 64 bits---no problems until yesterday????......................