When the user installs the extension, if they navigate to myapps.mozillalabs.com, the BrowserID popup to login to the extension does not appear. The only way to make it appear is if you open up another tab, and then return to the Dashboard (myapps.mozillalabs.com).
Steps to Reproduce:
1. Launch FF
2. Install the Apps extension - Tried openwebapps-adb507752d-12_12_2011.xpi from http://people.mozilla.com/~dclarke/openwebapps/Extension/
3. Go to myapps.mozillalabs.com
The BrowserID popup for the extension does not appear.
The BrowserID popup should appear allowing the user to log-in to the extension.
A Pivotal Tracker story has been created for this Bug: http://www.pivotaltracker.com/story/show/24808741
Still reproducible on FF 11 Beta with 3/1 extension build.