Stop browser from auto filling the form username and password fields

Question

In the Chrome browser, I have saved the username and the password.

Now, if I navigate to some other form and it contains the username and password for some other stuff, the one I saved is auto-populated here.

How can I stop this?

Excellency

possible duplicate of Is autocomplete="off" compatible with all modern browsers? – Gelid

@koala_dev similar questions but not equal – Selene

Answer 1

When autocomplete=off would not prevent to fill in credentials, use following -

fix browser autofill in: readonly and set writeble on focus (click and tab).

 <input type="password" readonly onfocus="this.removeAttribute('readonly');" onblur="this.setAttribute('readonly','');"/>

Untraveled

that one did work. but it is very strange, that there is no support for this if I need to set password for some other stuff. – Knapp

After hours & hours of searching finally I've found a working solution to prevent the form from being auto-filled by either the browser or 3rd party password managers. Thank you! – Heartworm

I added an onblur handler; otherwise in FF 71, when you revisit the field it prompts you. – Nysa

Answer 2

For Fire fox browser use this:

<input type="text" name="prevent_autofill" id="prevent_autofill" value="" style="display:none;" />
<input type="password" name="password_fake" id="password_fake" value="" style="display:none;" />
<input type="password" name="password" id="password" value="" />

For Chrome browser: use autocomplete="new-password"

Circumlocution

autocomplete="new-password" also work for Firefox now (version 77.0.1) – Gravettian

Answer 3

Please refer to the following:
https://www.chromium.org/developers/design-documents/create-amazing-password-forms and https://www.chromium.org/developers/design-documents/form-styles-that-chromium-understands

Try the following :

<form id="login" action="signup.php" method="post">
    <input type="text" autocomplete="username">
    <input type="password" autocomplete="new-password">
    <input type="password" autocomplete="new-password">
    <input type="submit" value="Sign Up!">
</form>

Uncritical

The auto-complete flag doesn't stop the password manager for prompting to fill the username. – Nysa

@LawrenceDol Which browser are you using? – Uncritical

Firefox, current. – Nysa

Have you tried the answer below by @Raymond Morphy `<input type="text" name="prevent_autofill" id="prevent_autofill" value="" style="display:none;" /><input type="password" name="password_fake" id="password_fake" value="" style="display:none;" /><input type="password" name="password" id="password" value="" /> My comment is relevant for the Chrome browser as the Question was for the chrome browser :) – Uncritical

No, because I used the readonly on/off method. – Nysa

PS, there's really no legitimate SO answer that is for "Chrome only"; such an answer is useless to the vast majority who don't control the client's browser. – Nysa

Answer 4

Simple: there's an HTML5 attribute called autocomplete.

Just set it to off.

<input autocomplete="off"/>

Subminiature

This does not reliably work in Firefox. There's some discussion here https://mcmap.net/q/549028/-disable-firefox-39-s-auto-fill – Dwt

When you make your browser remember your credentials, it will automatically fill the password trying to help you, even with autocomplete="off". The readonly answer from AK Square Infomedia does work for those cases. Great for update profile forms where you usually only want the password sent through if it's changing. – Arezzini

This also does not work in Chrome. Not sure why they add such nice and useful features to the HTML spec if the browsers don't bother to implement them. – Enumeration

Answer 5

• For input/type=text, use a textarea
• For password, use a textarea with a circle glyph font (see https://mcmap.net/q/58067/-imitate-a-password-type-input-while-using-a-contenteditable-div)

<textarea required="required" autocorrect="off" autocapitalize="off" name="username" class="form-control" placeholder="Your username"  rows="1" cols="20" wrap="off"></textarea>
<textarea required="required" autocorrect="off" autocapitalize="off" name="password" class="form-control password" placeholder="Your password"  rows="1" cols="20" wrap="off"></textarea>

@font-face {
  font-family: 'password';
  src: url('css/font/password.woff2') format('woff2'),
       url('css/font/password.woff') format('woff'),
       url('css/font/password.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
}

textarea.form-control {
  overflow:hidden;
  resize:none;
  height:34px;
}

textarea.form-control.password:valid {
  font-family: 'password';
}

Notes

1. Textarea prevent autofill
2. wrap=off/overlow=hidden/rows=1 force one-line display
3. the required pseudo css make the placeholder works
4. You'll probably need some "prevent eventKey=13 / submit" thing
5. Works fine under ffox/chrome/iOS

In the end, it end up been a freaking webshit sum of hacks (but it works)

Meander

Answer 6

First try to set the password field as

autocomplete="new-password"

The above solution should stop auto filling of both username & password

Note: Sometime setting up autocomplete="off" on username & password may not work

Soho