1password will not sign me in using IE9. It fills the username and password, but no event on login button and after that credentials are cleared.
1. open 1p4 extention in IE9 (clicking key button)
2. click search
3. search for twitter of facebook (in my case)
result: username and password filled, but no event on login button, after that credentials are cleared
NOTE: When you fill credentials again using 1p (clicking key and click on saved login in 1p) FB does log in, but twitter and pinterest not. Twitter tells me 'wrong combination of username and password. Pinterest thinks no password has been filled 'password required')