Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Password with @ saving incorrectly

  • 1 reply
  • 0 have this problem
  • 12 views
  • Last reply by cor-el

more options

I have a password with an @. When I save with password in Firefox, it replaces the "@" with "%40". I have tried deleting the saved password, going into the password menu and manually saving the correct password. However, "%40" keeps reappearing.

I have a password with an @. When I save with password in Firefox, it replaces the "@" with "%40". I have tried deleting the saved password, going into the password menu and manually saving the correct password. However, "%40" keeps reappearing.

All Replies (1)

more options

Does this also happen if you create a new login or edit an existing login?


Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or if userChrome.css/userContent.css is causing the problem.

  • switch to the Default System theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click "Refresh Firefox" in the Troubleshoot Mode start window