Is the problem that the input box on the form stops accepting characters, the input box on the form is too narrow and therefore you can't see how many characters are being entered, or Firefox's password save feature won't save an 18-character password?

Firefox should be able to handle 18-character long password.

Are you trying to log in to a web application (if so, what is the website)?

If you have the above problem, try the solutions presented on Fix login issues on websites that require a username and password.

If that solution doesn’t work, try Refresh Firefox - reset add-ons and settings.

Hi, thanks for your help, how do I change the input box form to accept 18 characters. I'm desperate for solution

Do you see any size restriction on that input form if you select that part of the screen and use View Selection Source in the right-click context menu or use the Inspector to check the code of that form?

• https://developer.mozilla.org/en/Tools/Page_Inspector
• https://developer.mozilla.org/en/Tools/Page_Inspector/HTML_panel

Yes ,I think is max 12, but yesterday I was able to change my password from 8 character to 18 character using desktop, but after that I could not log in from my laptop. Are you refer to the note below

<input name="c_pass" type="password" id="c_pass" size="40" maxlength="12"></td>

please advise

You can try to increase the maxlength by running this code in the Scratchpad (Web Developer > Scratchpad;Shift+F4) or the command line of the Web Console (Web Developer > Web Console;Shift+Ctrl+K), but the server may not accept it.

• https://developer.mozilla.org/en/Tools/Scratchpad
• https://developer.mozilla.org/en/Tools/Web_Console

N=document.querySelectorAll('input[maxlength]'),I;
for(i=0;I=N[i];i++){
 if(I.getAttribute('maxlength')=='12'){
  I.setAttribute('maxlength','20');
 }
}