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Firefox problem

by amblawn / November 18, 2005 9:09 PM PST

I have been using Firefox for a long time and all of a sudden it will not set cookies or retain passwords. I cannot log into yahoo mail at all or I get a '999 Error' message. Under 'Options' it is set to accept cookies. I have no problems with IE - it's functioning normally. I don't recall changing any settings and I don't have any of my security apps configured differently than normal. I tried uninstalling and reinstalling Firefox, but no change. Any ideas?


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Go to
by PudgyOne / November 19, 2005 12:45 AM PST
In reply to: Firefox problem

Go to




and checkmark the box allow websites to set cookies

click ok then close Firefox and restart it.

Hope this helps.

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by amblawn / November 19, 2005 7:03 AM PST
In reply to: Go to

It is already set to accept cookies.

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Something to check
by mart44 / November 19, 2005 7:16 AM PST
In reply to: Cookies

See that the date and time (including the year) are set correctly on the computer. This might seem an unlikely cause but I've come across it a few times before. Easy to check anyway.

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(NT) (NT) Time & Date are OK - thanks.
by amblawn / November 19, 2005 7:48 AM PST
In reply to: Something to check
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What I do when that happens.
by R. Proffitt Forum moderator / November 19, 2005 7:53 AM PST
In reply to: Firefox problem

I uninstall it, then install the latest version.


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(NT) (NT) I tried reinstalling - no change.
by amblawn / November 19, 2005 7:51 PM PST
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If the 999 link doesn't work, then profile time.
by R. Proffitt Forum moderator / November 19, 2005 9:38 PM PST

Backup your favorites and cookies then delete the profile directory as well then install.


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Profile Directory
by amblawn / November 20, 2005 8:00 AM PST

When you say to delete the profile directory, do you mean to go into Windows Explorer and delete everything under 'Firefox' in the Program Files? Or is there more than that somewhere else?


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Location of the profile directory...
by John.Wilkinson / November 20, 2005 8:10 AM PST
In reply to: Profile Directory

In Windows XP, the profile directory is located at ''local drive:\Documents and Settings\username\Application Data\Mozilla\Firefox\Profiles\random folder name''. This data is not deleted when uninstalling Firefox, and if corrupted, must be removed manually. Just uninstall Firefox, delete the Firefox directory in Program Files, then delete the above profile directory. But, before you do, MAKE SURE you backup the files bookmarks.html and bookmarks.bak. After reinstalling Firefox, a new profile directory will be created for you. At that time, delete the auto-created bookmarks.html and bookmarks.bak files, and replace them with your backups. You can then launch Firefox (which should be problem-free), verify your bookmarks are present, reset your preferences, and reinstall any/all extensions/themes you had previously.

Hope this helps,

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Deleted the profile directory....
by amblawn / November 20, 2005 8:59 AM PST

...and did a clean reinstall of Firefox - but still no access to Yahoo. Guess the problem is with Yahoo itself. For the time being I will use IE and hope that a problem doesn't develop with it also, or I will be out of luck.


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Error 999
by tomron / November 19, 2005 8:38 AM PST
In reply to: Firefox problem
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Thank you.....
by amblawn / November 19, 2005 7:54 PM PST
In reply to: Error 999

I will try some of the suggestions in that link.

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I seem to have found an answer...
by amblawn / November 22, 2005 3:00 AM PST
In reply to: Thank you.....

In the Yahoo sign-in box there is a mode selection. If I choose 'secure' over 'standard', I can log in successfully in Firefox. It doesn't seem to matter what mode I select with IE - I can get in anyway. Found the answer on an obscure forum that has nothing to do with computers!

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