This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

Natao arisiva ity resaka mitohy ity. Mametraha fanontaniana azafady raha mila fanampiana.

Invalid Username error in all saved passwords

  • 7 valiny
  • 2 manana an'ity olana ity
  • 1 view
  • Valiny farany nomen'i cor-el

more options

Username and Passwords are already saved. When I select a username from the drop-down list, automatically the password associated with that username is entered. When I click enter or login, everytime and for every account it says - Invalid Username. When I enter the username and password manually, only then I am able to login. Uninstalled and re-installed Firefox. Cleared History, Cookies, Cache but the issue is still there.

Username and Passwords are already saved. When I select a username from the drop-down list, automatically the password associated with that username is entered. When I click enter or login, everytime and for every account it says - Invalid Username. When I enter the username and password manually, only then I am able to login. Uninstalled and re-installed Firefox. Cleared History, Cookies, Cache but the issue is still there.

Vahaolana nofidina

It seems the browser had shuffled the passwords. Now when I have deleted all saved passwords and saved new ones, everything is working fine. Thanks for the suggestions!

Hamaky an'ity valiny ity @ sehatra 👍 0

All Replies (7)

more options

When you uninstalled did you also delete the Mozilla folder? I know the password saved option should you use the same email or user name for sites unless you know which is which it will input the wrong password-since you can't see the password are you sure it was the right one.

more options

Are you using a password manager add-on/program?

Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?


Separate Security Issue: Update your Flash Player or remove it using these links; http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html Uninstall Flash Player | Windows http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-mac-os.html Uninstall Flash Player | Mac

Note: Windows users should download the ActiveX for Internet Explorer. and the plugin for Plugin-based browsers (like Firefox).

Note: Windows 8 and Windows 10 have built-in flash players and Adobe will cause a conflict. Install the plugin only. Not the ActiveX.

Flash Player Version: Version 30.0.0.134

https://get.adobe.com/flashplayer/ Direct link scans current system and browser Note: Other software is offered in the download. <Windows Only>

https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) Note: Other software is offered in the download. <Windows Only> +++++++++++++++++++ See if there are updates for your graphics drivers https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration

more options

Vahaolana Nofidina

It seems the browser had shuffled the passwords. Now when I have deleted all saved passwords and saved new ones, everything is working fine. Thanks for the suggestions!

more options

That was very good work. Well done. Please flag your last post as Solved Problem so others will know.

more options

I have reset my my password and successfully logged in on one mac platform. But it only worked once. Now when I go to re log in it says my username and password are unknown. After doing a password reset again, it still will not ask for the use name but instead asks for my email and then rejects the password. So none of my usernames, emails addresses or passwords will work to migrate my mac firefox data to my new firefox windows laptop app. BAD. This has happened every time you do a firefox upgrade, none of my passwords work. I really need to solve this today, right now for work. I need to use the login features, and migrate my mac desktop data to my new windows laptop. HELP!!!!

more options

bekglm1 Please go to the top of any support.mozilla.org web page and use the Ask A Question link; https://support.mozilla.org/en-US/questions/new Select the product for what the problem is (Firefox or whatever).

Now select the category for the problem. At the bottom is Other.

Describe the problem in brief (one line). Then press <enter>. The website will display any prior posts that might help you. If nothing on the list can help, at the bottom press the button; None Of These Solve My Problem.

Now enter all the relative information on the problem. At the bottom of this, you can Add Images.

Under this is Troubleshooting Information. Please press the Share Data button. This will let us look at your system details. No Personal Information Is Collected.

more options

Hi bekglm1

Such issues can be caused by corrupted cookies or cookies that are blocked.

Clear the Cache and remove the Cookies from websites that cause problems via the "3-bar" Firefox menu button (Options/Preferences).

"Remove the Cookies" from websites that cause problems:

  • Options/Preferences -> Privacy & Security
    Cookies and Site Data -> Manage Data

"Clear the Cache":

  • Options/Preferences -> Privacy & Security
    Cookies and Site Data -> Clear Data -> Cached Web Content: Clear

If clearing cookies didn't help then It is possible that the cookies.sqlite file in the Firefox profile folder that stores the cookies got corrupted.

  • rename/remove cookies.sqlite (cookies.sqlite.old) and if present delete cookies.sqlite-shm and cookies.sqlite-wal in the Firefox profile folder with Firefox closed in case cookies.sqlite got corrupted.