Price information is given when the icon is clicked, but instead of a chart there are the words "Error loading chart. Please retry your request." The walkthrough when you install it also doesn't work, so maybe it is graphics-related. It all works fine in Chrome.
The Firefox extension doesn't work at all—clicking on the icon displays the menu that option-clicking is supposed to display (i.e. the disable, options, permissions, etc.)
The chart should show.
Version 0.99.133.2.1-rc
Sequoia (15)
