I have develop a content edit chrome extension for company inner use. By click the extension's icon, it will get some content from the current page and open a new extension inner page to edit the content.
I also develop a chrome extension for self use. Also a click of the icon, it will get all the image's url in the page, and send these data to backend for download.
This is the two extension I have developed, but none of them be published in the chrome webstore.
Hope for a further more communicate