Firefox has the option to protect saved passwords with a master passwords and if you already unlocked the password store, in order to read password from the GUI, you need to unlock it again
Exactly. Mozilla's email client Thunderbird also uses a Master Password to unlock the view-ability of the stored passwords.
For those who insist on saying that chrome's security method is good enough consider this: How many people use separate log-in's for the "Family" computer that stays on most of the time? Not very many I'd imagine, just too much trouble for most to deal with. This means that both other family members as well as house guests can casually access all those passwords in no time.
Even if you do use different log-ins consider this type of common scenario: Your son or daughter has a "friend" over and they are cruising the web on her account doing whatever. Say that they are reading some news item or article together when the daughter gets up to go the bathroom. Do you think for one second that she is going to lock the computer and force her friend to wait to finish what she is doing? No. Her "friend" will then be able to casually and quickly access all those passwords and type them into her iphone for safe keeping before your daughter gets back. She now pwns your daughters facebook account, bank account, cellphone account and who knows what else.
How can anyone with a straight face say that is an acceptable security method? The fact that my open source email client has an easily useable default master password system proves that it is something that chrome could easily implement as well, hell, just copy the open-source code from thunderbird if you need to...
To be quite frank; when I think of Google or Microsoft "my security" is not something I honestly expect from them, and this newest revelation just further confirms that perception.