What do you mean by 'market for these kind of sites'? Do you mean 'can you sell it', or 'will it make money?' It's quite a nice looking and well done landing page - the only 'exit paths' for someone arriving there are either to click on an ad or to download firefox, as the designer intended I'm sure Yes I imagine there is still a use for pages like that.
I think there is a market for this type of webpage it all depends on what you are selling. If you can get everything to fit on one page in a clear and concise manner then I think it can be successful.
I think these landing page-type affiliate sites aren't very successful as far as SERP and SEO goes, but can work alright in different online marketing campaigns if it's professional enough.
well depends... on the site. I can tell you i have on page perfect optimized with much more traffic that one with 10 pages unique, same topic and very simillar domain. it all depends of course...
Its one page website, however nicely blended and if someone lands on the page, he will surely go to other page by clicking an ad (or by closing browser and by some other same mean.). For me it can make money.
Where did you read that Majority of computer users has windows installed. Windows comes with IE and THAT is the major browser.
This site will definitely earn money if it ranks well for FF download related keywords However, not many people will link to this page given the value created.. hence, difficult to obtain a good ranking as well..
I guess it is either used for PPC traffic, paid advertising traffic, or for traffic that is sent from another site - that is the usual goal of landing pages like this, rather than SEO traffic.