When I log in to most sites my password manager automatically fills the username and password and I just click on submit. Some sites aren't in the password manager, and I have to type in the username, tab to type in the password, and normally I would just hit enter and it would submit the u/n and p/w Recently I have noticed, this doesn't work, I have to click on submit or tab until I am on the submit button then press enter. Other forms where I search (for example) i can enter text in the field then press enter from that field and it submits fine. I am wondering if there is a setting in firefox that would control that, or if it is just a plugin that is likely to be breaking this behaviour.