Firefox addon for selecting and submitting text on webpages

I need a simple Firefox addon for selecting and submitting text on webpages based on the HTML structure. A sample addon is [login to view URL] where you can select text using highlight-boxes like in Firebug. What I need is something quite simpler than that because I only want one method of submission to a server and, instead of using a toolbar for confirming the selected text, the user should hover the cursor over the selected region and click on an icon which then pops up. My addon must be able to select text by both traditional highlighting *and* box-highlighting (like in the sample addon). Note that only text needs to be selected, so you can ignore images, flash videos, etc. Seller will transfer all copyright and IP rights. More details can be given to likely winners. The budget is less than $250. All past programmers having worked with us were offered future opportunities, so the same will definitely go to the winner of this project.