I want to develop a Google Chrome extension that would detect a search form, and then contact the server and perform some operations locally. I am new to this area (I have never programmed an extension before), so I have a few questions because the Google Developer Center was not clear enough to me, and maybe you can help me.
How can the browser recognize certain fields when clicked by the user? I don't need an exact answer, just a place to search / learn. In addition, there are extensions that can perform arithmetic operations?
Cheers, p312z
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