I would not recommend using your browser to store your passwords...
I highly recommend KeePass 2.0 - I use this to store about 50 separate account passwords & usernames. To gain access to my KeePass 2.0 Vault you have to open my safe with my USB inside (which contains the Key File - without this you cannot enter the Password Vault). You then have to know my 30 character complex algorithm password
I also use KeePass 2.0 to generate 75 character passwords: my Steam, Google Accounts, etc all use 75 character passwords with characters that cannot even be typed on a keyboard!!! Try & hack that!
By the way I am actually being serious....