For example this in an Indian website http://compareindia.in.com/products/monitors/
All prices on page are in INR (currency of India), is there any plugin/add-on on any browser which can change the curreny of page INR to any: USD, AUD, GBP etc?
closed as off topic by DMA57361, Daniel Beck♦, Nifle, ChrisF, Bobby Jan 23 '11 at 21:02
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The only thing that would 'allow' you to change foreign webpages to your style, is to get Grease Monkey (firefox plugin) it allows YOU the user to customize content on other websites (just for yourself tho, keep that in mind, nobody else will see these changes).
List of Currency conversion scripts:
Seems like Chrome Currency Converter is what you need.
If you're on Mozilla Firefox, look at Forex Converter