No Go Under Linux Rated 4 out of 5 stars

This appears to work OK under Windows, but under Ubuntu Linux only small, blank windows are generated -- no visible QR codes.Mobile Barcoder 0.2.1, Firefox 4.0.1, Ubuntu 11.04.
UPDATE: I restarted Firefox yet again, and now "Create barcode from selection" is working. The bottom right icon for creating a link to the page still produces a tall, thin blank window.

This review is for a previous version of the add-on (0.2.1.1-signed).