With Export HTML List Options chrome extension you can easily extract all HTML elements like dropdown lists and list boxes, as text from a web page.
After installing this extension adds an “Export All HTML List Options” item to the Chrome context menu. When one of the options is selected it opens a popup window containing the text and/or values from all select elements on the page. The text in the popup window can then be copied and pasted wherever you want.
UPDATE: This extension is not available on Chrome Store. However, You can download its CRX from HERE and ZIP file from HERE. You can see installation guidelines at How to install Google Chrome Extension from thrid party.