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About this Add-on
This is nice, but if you sign-in with checked "Stay signed in", Google saved your account information into cookie and it remain after sign-out.
As a result, Everybody can see your account id on google sign-in page.
This is not good in shared PC.
Therefor I created this addon to remove cookie that related to account chooser automatically.
When you try to sign-in Web site that is using the "Mozilla Persona" for user authentication ("Mozilla Developer Network" and "bugzilla" for example) with Gmail address.
You have to sign-in to Google in the middle of authentication.
At that time, the check box that says "Stay signed in" does not appear on the Google sign-in page.
But it is treated as the check box is checked to "Stay signed in" state Internally .
As a result, Google saved your account information into cookie and it remain after sign-out.
Maybe my other addon "Uncheck Stay-signed-in for Google Login" will help to protect your privacy.
Important Information: 2016/03/16
Mozilla is changing a lot of things about add-on development again. So this addon might be stop working in the future.
"The Future of Developing Firefox Add-ons | Mozilla Add-ons Blog"
"Add-ons/developer/communication - MozillaWiki - Upcoming Changes in Add-on Development"https://wiki.mozilla.org/Add-ons/developer/communication#Upcoming_Changes_in_Add-on_Development