I’ve seen this a couple of times and someone else commented to me that they’d seen it at Orly’s site too. I finally snagged a screen shot.
To see this, you have to leave your browser sitting on a Taitz page for an extended period. The warning is spurious. Version 26.0 is the current version of Firefox, and my browser doesn’t need updating. Firefox updates itself automatically, and you should never install a browser from a third-party web site. The source of the page is not just for Firefox; it will display messages for Internet Explorer, Safari, Chrome and Opera.
The page displays a “Terms of Service” but since there is a popup window on top, you can’t read it. Looking at the “Terms” in page source, one gets a hint as to what they’re up to:
…This website is designed to provide easy access to downloads of a variety of useful free open source software. We also partner with 3rd parties to offer toolbars and other tools "Toolbars" for download to our users. We will refer to the Toolbars and the other related services we provide as the "Services". …
I don’t know what happens if you click “OK.” I looked at the page source and every URL in there passed a Google Safe Site check, but as it starts with a lie, there’s no way you could trust what they’re doing or know where you might end up. The same may be said for this page that also pops up of you stay on the Taitz site very long:
And what THIS thing that sometimes appears at the bottom of her page?
The page that pops up also contains a web bug so that an advertising company can track the page you were on.1
1This site also uses a tracking image with Google Analytics to count visitors. This information is not shared with third parties and this site does not contain any paid advertising.