The OpenLink Data Explorer Extension
Extensions for Firefox, Safari, Google Chrome to explore data underlying web pages.
Must be my lack of business experience but I would think a browser extension would start with the most widely used browser.
I think the claim that Linked Data supports the combination of heterogeneous data without programming, well I suppose that is true.
That is heterogeneous data can be combined using Linked Data, whether it will be meaningful is an entirely different question.
There are some SW based efforts to make such combinations more likely to be useful. More on those anon.