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How do I fix sign in problem with my Yahoo hompage via Firefox browser

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New User

How do I fix sign in problem with my Yahoo hompage via Firefox browser

The normal browser process, of course, is that when you click on the Firefox icon it opens the browser and automatically signs you in to your preselected home page. Unfortunately I have recently run into a problem with error messages popping up and obstructing this opening process.

Special comment: It started occurring at about the same time my Yahoo mail account was breached and spammed and I had to change my password as a beginning move to counter the account security breach. I am not certain this incident produced my current problem, but it quite possibly related to the cause. It still remains that have to clear the problem, whatever caused it.

These error pop up messages do not occur when I use the Internet Explorer or Chrome browsers, so it certainly appears to be a Firefox browser related issue. I have tried clearing all cookies, enabling and disabling all Java plug-ins and extensions, changing passwords, and nothing has had any effect.

The first pop up window is headlined as, "[JavaScript Application]. It then cites my correct Yahoo username and is followed by this text; "(my username)- Invalid username/password combination. If you continue to get this error, try entering your email address as your username".

Note: Entering my email address as a username did not help either. The username cited in the error

         message is the correct username as well.

The second pop up window says, "We noticed you may have signed in or signed out in another window. Click OK to reload your page".

Note: Clicking the "OK" button does not re-sign in the page. What does happen is that it reloads the generic MY Yahoo home page and then I have to manually sign in to get my personally customized My Yahoo home page.

I have since upgraded to the most current Firefox browser version, but the problem remains the same.

If anyone has any idea on how to remedy this sign-in issue I would appreciate hearing from you.

Thank you

1 ACCEPTED SOLUTION

Accepted Solutions
Mozilla Support Contributor

Re: How do I fix sign in problem with my Yahoo hompage via Firefox browser

If you had Firefox save your Yahoo password, first try deleting that here:

orange Firefox button or classic Tools menu > Options > Security > "Saved Passwords"

The "signed out" message seems to be related to how Yahoo authenticates you. Some users have reported that disabling automatic proxy detection solves the problem, and it also resolves an issue of getting logged out every few minutes, if you have ever experienced that.

To make the change:

orange Firefox button or classic Tools menu > Options > Advanced

On the "Network" mini-tab, click the "Settings" button, then choose "No Proxy" and OK your way back out.

If your work connection requires you to use a proxy server, try the "Use system settings" option instead.

Does that help?

5 REPLIES
Site Moderator

Re: How do I fix sign in problem with my Yahoo hompage via Firefox browser

Clear the cache and the cookies from sites that cause problems.

"Clear the Cache":

  • Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"

"Remove Cookies" from sites causing problems:

  • Tools > Options > Privacy > Cookies: "Show Cookies"

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do NOT click the Reset button on the Safe mode start window or otherwise make changes.
Mozilla Support Contributor

Re: How do I fix sign in problem with my Yahoo hompage via Firefox browser

If you had Firefox save your Yahoo password, first try deleting that here:

orange Firefox button or classic Tools menu > Options > Security > "Saved Passwords"

The "signed out" message seems to be related to how Yahoo authenticates you. Some users have reported that disabling automatic proxy detection solves the problem, and it also resolves an issue of getting logged out every few minutes, if you have ever experienced that.

To make the change:

orange Firefox button or classic Tools menu > Options > Advanced

On the "Network" mini-tab, click the "Settings" button, then choose "No Proxy" and OK your way back out.

If your work connection requires you to use a proxy server, try the "Use system settings" option instead.

Does that help?

New User

Re: How do I fix sign in problem with my Yahoo hompage via Firefox browser

Removing all the saved passwords solved the problem....hooray!!!

Thanks to JSCHER2000 for the solution and relieving a real annoyance for both of my computers. It's truly appreciated. Gracias Amigo!!

New User

Re: How do I fix sign in problem with my Yahoo hompage via Firefox browser

Thanks to Corel for help suggestions also. They are appreciated.

New User

Re: How do I fix sign in problem with my Yahoo hompage via Firefox browser

In case I did not submit the solution reply properly, I am re-posting it in this reply.

Removing all the saved passwords was the solution to my problem.


Thanks so much for the help and relief.