Firefox Community Forum

Firefox does a good job of filling in username and password prompts. Occasionally, it doesn't. The sign-in prompt for American Airlines is an example. Go to AA.COM and click on the "Log in" button. The prompt box labeled, "AAdvantage® # or username", is not filled in; but the prompt box labeled, "Password" is recognized and filled in. There must be something about the wording or the HTML used for the first box that obscures the requested information.

Not sure I understand this.... I know all about the saved logins & passwords that I can find under settings and I use that list regularly. But sometimes I have a site that isn't listed in my list. Perhaps it's been a very long time since I used it etc...

But when I click on the user or login field for the site, a list of user names will appear and it's obvious that these are not related to this site. For example I'm on a specific site this morning and I see a list of 6 user names, including my regular email address, another email that I sometimes use, 3 variations of a common user name I use, and a long number.

If I go to the saved password list and search for this site, it isn't listed. If I sort by user name, I can't really search for the usernames that are more common but I can look for the long number and 1 variation of the user name

• Bulleted list item I see the long number and the site it's associated with and it's not this site.
• Bulleted list item I do not see the specific variation of the user name

So....

• Bulleted list item Why does the user name that is a long number appear in a list when I click on the user field at the website when it's associated with another website?
• Bulleted list item Why does a variation of the user name appear in the same list when it is not shown anywhere in the saved password list.

I've seen it happen many times and what's really strange is that on 1 site clicking on the user name field will bring up a list that contains unassociated user names and another website might bring up a different list of unassociated user names! Really strange. Where are these tidbits of information being saved?

Hi,

I am concerned that when I signed into my bank account today, the saved username which is autofilled by Firefox had been changed. The change was subtle -- from uppercase to lowercase letters -- but it wasn't me that changed it. This is a site I log in to often, almost every day.

Of course I am worried that this is some sort of hack.

FF is offering up possible login names for a particular site I have used previously even though I have removed all related browsing history, form data, and cookies (and cleared the cache). What am I missing? Is it using stored history for unrelated sites to guess at a user name, or is there some other hidden history I need to clear?

I use an online retailer to buy birthday cards and gifts - Moonpig.com. Whenever I choose Paypal as my payment option, it logs me directly into my Paypal account without me entering any details. I have several Paypal accounts and want to choose which one to use. I have no saved payment details on Moonpig's site and having checked, they say that somehow my browser is logging me in automatically. That's Firefox and I want it to stop.

I have no issues with Firefox storing log-in details but I should be able to choose which Paypal account I want to use.

Any thoughts please? UF

I accidentally typed my protonmail password into the field of my username/mail address. I don't remember what more I did (propably answered yes to save) but now there is as autofilled my password for username always I open my Protonmail account. I am using Firefox as browser (should be the newest version) while Emailing.

I tried to delete autofill of Firefox according to the next advise: "go to Settings > Privacy & Security, scroll to "Forms and Autofill," and uncheck "Autofill addresses" to stop saving them"

Then I was astonished. There is no "Forms and Autofill" setting on my Firefox at all!

Protonmail settings didn't help either nor Windows 11 - neither FAQ.

Ilkka

I have been using 1Password 7 to manage my login credentials. It includes a Firefox extension to fill in account names and passwords in login alerts and pages.

Firefox 147.0.1 (macOS aarch64) in January 2026 has broken 1Password 7's ability to fill in account names and passwords.

To reproduce: 1. Install 1Password 7 Version 7.9.11 (70911000) and its extension version 4.7.5.90 in Firefox 147.0.1 on macOS. 2. Visit a URL for which 1Password 7 has login credentials. 3. Click on the toolbar icon for 1Password 7. A 1Password 7 dialogue box pops down from the icon, containing the username and password for that URL. 4. Click the Autofill button in that dialogue box.

Observed behaviour: 1. Username and Password fields remain blank.

Expected behaviour: 1. Username and Password from 1Password 7 appear in the Username and Password fields.

For approximately the last three months, there was a partial failure similar to this. 1. 1Password 7 popdown dialogue moves from the toolbar icon to the Firefox tab for that URL. 2. Username and Password fields remain blank. 3. Workaround: click in the username field, then tab 2-4 times to further UI objects in the login credentials form. Then click the 1Password toolbar icon, then click the Autofill button in the popdown dialogue. Then, the Username and Password from 1Password 7 appear in the Username and Password fields.

The expected behaviour occurs for the same URLs in Safari.

Thus I suspect that Firefox has somehow changed its behaviour in the last few months to cause this regression. I have not changed the 1Password software versions in this time, because I am intentionally using a previous version of 1Password.

I am looking for a fix or workaround which works with my current 1Password software version. I am not interested in a solution which requires me to upgrade to the current version of 1Password. (The current version of 1Password imposes a feature which I am resisting.) I realise that this reduces the chance that I can persuade the Firefox team to find and correct this regression.

I have two e mails, but when i try to go to my secondary email [email 1 removed]@gmail.com i always get my primary one, [email 2 removed]@gmail.com. why?

Bank site allows autofill for username but does not allow autofill or manual fill for password. Access to the site worked fine 3 weeks ago. Autofill works with MS Edge.

FF 147.0.1 (64-bit) Linux mint 22.3

Hi everyone, for some time (~2weeks) I have the issue that I don't get any autofill-information in login screens.

I checked the relevant settings/passwords/"Fill usernames and passwords automatically" (OK) I deleted my ff profile and reinstalled ff. (whereas here it worded briefly) I disabled all plugins (only have "uBlock Origin" running at the moment)

I'm pretty puzzled, does anyone have any ideas? Best, Stefan

Hello !

How can I retrieve password and usernames that are saved in the login forms of visited websites ?

I know how to see "password and login" in Mozilla settings (Private life & Security / Saved Passwords).

But on some websites, the connection to my account is automatic : password and usernames are saved in the login forms (like cookies may be ?), and they are not present in Mozilla setting and Saved Passwords.

I didn't find anything in the web on my request.

Is it possible te recover this recorded data ?

Thank you by advance.

First I tried all the suggestions I could find. And FF just kept double filling the password. So I did a completely fresh FF install to a separate folder with no cookies or passwords or anything saved, and never any extensions installed. Still double fills the password -- which makes it impossible to log in. I am using FF Portable, and tried both the latest version and an older version. What could possibly be doing this?

The Firefox auto login of a default site feature has become a supreme annoyance. Being insufficiently Firefox savvy to be able to disable this unhelpful feature (in my case). Can someone please help with avoiding or disabling this feature so that the initial site selection is left to the user, other than totally avoiding Firefox which I otherwise find highly functional and enjoyable.

It's very hard for me to find where to go after clicking on the three line symbol in right hand corner. But when I finally did locate in Settings the section on passwords and sign-in info I turned that off. I was happy until I again signed into Mozilla and Amazon and my email address (which I use for ID) continued to pop up. Why do these things have to be so hard to find and then to make work. Please help. Thank you.