Broken, and unresponsive developer Rated 1 out of 5 stars
Ever since Firefox 7 I get an error popup whenever I click the GBookmarks menu: "Bad Request https://www.google.com/accounts/ServiceLoginAuth Error occurred while retrieving from the server!". Back in October I emailed the developer as directed on the home page, but have still received no response.
I am very disappointed. I have loved this extension for a whole bunch of years, but now I have to drop it from 5 stars to 0 (er, 1, since Mozilla won't let me give it a 0) for this continued lack of responsiveness after it broke.