If InvisibleHand isn't appearing as-expected, please follow the attached troubleshooting steps:
First, please visit this page and confirm that InvisibleHand still is not appearing. If you see the yellow bar at the top of your page, then PriceBlink is working properly.
If the bar doesn't appear, do you see the InvisibleHand icon in the grey space to the right of your address bar?
If not, check to see if InvisibleHand is still active by clicking on the Chrome Menu (looks like this: ) and navigating to your Extensions.
You should see a check mark next to InvisibleHand indicating that it is enabled.
Verify that you are not in Private/Incognito mode (if you open a new tab and see "You've Gone Incognito, you're in Incognito mode.). InvisibleHand does not work in incognito mode.
Assuming InvisibleHand is still active, but not working, please try the following:
Please disable the add-on and then re-enable it. Then, try this page and seeing if the toolbar appears.
If that doesn't work, let's try uninstalling the add-on and then re-installing it from this page.
Finally, if that doesn't work, it's possible that one of your other extensions is causing the issue. Please disable your other extensions and re-enable them one-by-one to identify the conflicting add-on.