Access other tab content in IE and Firefox

[kadnan]

Is there anyway to figure out the content of other web pages open in other tabs. The objective is to figure out the trend if user of my site is visiting my competitor website so that I could offer similar products.

Cross site cookies are not possible so I am looking workaround for that.

[rocknbil]

Don't think this is possible. It's also disallowed in frames and iFrames for security reasons. The browsers won't let you do it - UNLESS you open the window and generate the content yourself, which is kind of counter to the point.