After finally being able to install the Chrome extension I encountered a problem on http://creative.adobe.com
Case 1: I have no 1password entry for the page, enter my login data into the web form and submit
=> 1Password does not offer to save the login details
Case 2: I manually created an entry for the page with username and password and use the 1p extension to submit.
=> The form is not automatically submitted even though Auto Submit is on
=> 1p extension offers me to update the 1password entry (which it does at every subsequent login again and again).
Current versions of Chrome, 1password, 1password extension, Mountain Lion.