0.2.0 is wonderful... mostly. Rated 3 out of 5 stars
Version 0.2.0 (from https://addons.mozilla.org/en-US/firefox/addons/versions/2780 ) has working context menu pop-up. I needed to force it with Nightly Tester Tools. Context pop-up does not work with 0.2.1. I am using Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:220.127.116.11) Gecko/20100423 Ubuntu/10.04 (lucid) Firefox/3.6.3.
One other problem with the context pop-up is that the border is clear--which means 'dark' when using a dark system theme. That breaks functionality for some phones (E71 and N900); they can't recognize the code without a white border. I know that is a weeny complaint, effecting only a small portion of users. But the context pop-up is core to this add-on, for me at least.