It will be perfect, with a right click (context-menu) possibility on links, and open with Instapaper directly in news tab (or not).
I have used Clearly for years, which is no longer being developed. Readability cannot be installed now. This is a very capable substitute. All you do after installing it, is click on the I icon in your toolbar, and a lot of the crud from a webpage has been taken away! I gave it 4 out of 5 stars, because it will insist on giving me lots of page info that I don't normally get when I have used the other addons in the past for doing this job. But still, a decent replacement.
I think this add-on is great!
But I think that if user open a new tab and then click the icon,
it could take him to the website of instapaper!