Ditto, along with ....... Plus and, if you're really paranoid, NoScript.

....... did not stop my virus.

Why should it? It stops adverts not virus.

Your question should be why your anti-virus software didn't pick it up?

Windows = Virus

FIXED

Not necessarily, otherwise YouTube videos wouldn't play on iPads and iPhones.

iPads and iPhones are not the platform under discussion.

Neither was Flash under discussion, at least at the beginning of the thread.

I am trying to remember the name of this one, but I have had it a couple of times and have seen countless instances over the last 6 years or so. What have you done to remove the virus? Do you have any protection on the system?

The first thing I would tell you to do would be to download malwarebytes, (its free and it actually works really well. I would run a quick scan first, let it clean then restart and run a full scan, let it clean and reboot. See if that fixes your issue. If not I am happy to do what I can to help over the forums.

If you already fixed the issue and this was a post about FF and security, I apologize.

You got hit by a 'Drive By download' very common and browsing history means nothing. A single ad on any site COULD trigger the download. Was very common and still maybe for 'Drive by downloads' to happen on popular news sites and sports/entertainment sites.
I along with many others run FF + an assortment of add on`s + Win* and have never had an issue. Could be diligence in maintaining OS patching or luck? :D

Try using FF + "No script" addon.

The downside of NoScript is that sometimes, it is difficult to view certain sites.
It will also show you how some websites have links to dozens of other sides without your knowledge.

When u view a website, it shows content.
The content could be dynamically linked from tons of other websites.
Any of those external websites can contain viruses.
NoScript blocks out those other websites unless u choose to allow them.

Been using Win and FF and no viruses so far in years.
I've also been diligently updating the programs.

What was under discussion were vectors for infection of PCs through a web browser. Flash, Java and other plug-ins qualify.

Last I heard, an iOS device is not categorized as a browser plug-in. That said, there is one virus for which those devices are a vector:

iTunes ;)

Time to make sure you have Malwarebytes on your computer and log back on in safe mode with networking to clear it up.

I use FF, but I rely on Microsoft Security Essentials and Malwarebytes Pro to protect me from viruses and malware. Some people use Avast instead of MSE, but everyone loves Malwarebytes free and Pro. Pro has the real-time protection and updating.

My OS is diligently patched, I actually sent Microsoft a fairly long email in 2009 about a HTA vulnerability affecting my fully patched IE, it used javascript and AJAX to dowload and decode a trojan on the fly. Never got a response and switched to Firefox around that time.

Java is supposed to update itself, not sure why it didn't in this case.

I'm paranoid! ;):D

+1