User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0 Build ID: 20171128222554 Steps to reproduce: Redirect to a site that requires user authentication (credentials), you can enter a username and password and submit to log-in If you click 'save' when asked to save your credentials, the next time i visit the page I would expect to be logged in right away. Found when firing javascript TFSChangeSetLinks Actual results: you are presented with the dialog to enter your credentials, it has the username and password pre-poulated, but It didnt sign me in Expected results: I should be able to make firefox sign me in automatically if valid user credentials have been saved for a site.

We intentionally don't support auto-login with login forms since it wouldn't work on many sites and would be fragile. I don't believe any other browsers have this behaviour either. (bug 283662 is a much older report).

Hi Matthew My mistake, I didn't mean login forms, as quite rightly as you said, no other browsers support this either. I mean the 'Authentication Required' dialog which firefox can ALWAYS save if you want it to. In my company there are alot of intranet sites which require this information and even though firefox is able to save all of the details and pre-populate this dialog, it should also allow auto-submit. I have attached a screenshot showing what I mean: https://puu.sh/yB9wu/aa45cf8674.png Can you confirm if this is also intentionally unsupported?

Oh, ok, that's bug 223636 then. I think there are potential security issues in doing this.