Firefox extension: URL maker

I want a Firefox extension that can do the following. Let’s say you are leaving a comment on someone’s site, and you want to make one of the words into a link, you have to manually type in the a href=url blah blah stuff by hand. It would be nice if you could:

1) Copy the URL onto your clipboard

2) Highlight the text you want to be a link

3) Right-click on the selection and hit “make into url using clipboard”

And then it would automatically add the a href=url blah stuff to the text.

I tried searching Firefox’s extensions for: highlight, clipboard, right-click link, and right-click url. But no luck. The closest thing is FarkCode and that does it in BBCode, not HTML.

Does anyone know of a Firefox extension that can do this?