Right now, not much. The extension is fairly basic in that is just looks at the raw text + HTML and sends it to the LLM.
The benefit of this approach is it's very simple and easy, but the downside is it sends a lot of unnecessary tokens to the LLM. That drives up the cost, slows things down, and hurts accuracy.
I'm working on a few improvements now to improve this.
I remember there was something called readability for chrome which is just what browsers have incorporated as reader view. And mozilla even had a stand-alone version of it (1). Might be of interest to you.
The benefit of this approach is it's very simple and easy, but the downside is it sends a lot of unnecessary tokens to the LLM. That drives up the cost, slows things down, and hurts accuracy.
I'm working on a few improvements now to improve this.