My idea; write a program that can recognize specific words/phrases on a webpage, and replace them with words/phrases given to the program. Similar to the f3 function, that can find and highlight words, but rather replace them. How would i go about creating and using this?
I presume by replace you mean replace in a local copy of the website on your computer. Copying from a website is reasonably easy, but I have forgotten how to do it. Replacing words in a String of text is really easy. Look through the String class' methods.