Auto click a button on a webpage, using Excel/Macro/VBA

Based on current coding, further develop function of "auto" click. The attached file opens a series of webpage by sequence. Enter a number (e.g. 3) in cell "G1", it will open 3 pages, by serial number starting from F1. New function need to be developed: 1. Search the title keywords. The key words will be stored in Excel separate tab, Various keywords, various length, multiple keywords (lines) need to be searched one by one. 2. If meet the criteria above, Search a button "Buy It Now" and click it There are 3 types of pages - two of them don't need to worry about. Best achieved in Firefox - let me know if not possible. Sample HTTP code attached below. <div class="column auctionActions"> <form class="addToBasket" method="post"> <input type="hidden" name="action" value="addToBasket"/> <input type="hidden" id="itemID" name="itemID" value="2301909"/> <p class="ui-helper-clearfix"> Buy it Now <span class="price" itemprop="price">$10.00</span> </p> <p class="submit ui-helper-clearfix"> <input type="submit" class="btn btnBlack requireLogin" value="Add to Basket"/> </p> </form> Note: if above works fine, further works will require auto running - timed (need to detect URL address)