I am using Firefox 13.0 Beta 2 and my Yahoo Mail account, which is set to sign in every two weeks, is requiring me to log in every 20-40 minutes. I experimented with my wife's account and it does the same thing.
you might want to try disabling the yahoo toolbar in firefox > addons > extensions & see if that makes any difference.
Websites remembering you and automatically log you on is stored in a cookie.
Make sure that you do not run Firefox in Private Browsing mode.
Do not use Clear Recent History to clear the "Cookies" and the "Site Preferences"
Clearing "Site Preferences" clears all exceptions for cookies, images, pop-up windows, software installation, and passwords.
Thanks cor-el, but I had seen that on another thread and done all of the above with negative results.
You have created an allow exception for the site(s) that yahoo uses?
If clearing the cookies doesn't help then it is possible that the file cookies.sqlite that stores the cookies is corrupted.
Rename (or delete) cookies.sqlite (cookies.sqlite.old) and delete other present cookie files like cookies.sqlite-journal in the Firefox Profile Folder in case the file cookies.sqlite got corrupted.
I did change the exception setting and found a list of saved passwords. I deleted all of the yahoo passwords I found there and am going on two hours without having to sign in again. So far. So good.
Sorry it took me a while to get back here. I have been working and away from this computer. I was wrong...I'm still having the same issues. To update:
I was mistaken on having created the exceptions. I had just changed the settings. I added exceptions for:
I searched the entire computer (including hidden files) and registry for the cookies.sqlite and related files and found nothing.
I also had disabled the yahoo toolbar and it didn't make any difference.
Between this and a separate networking issue, I'm about shoot the damn things and go back to pen and paper.
I'm going to let it go a couple of hours and see if it does it again. If so, I'm going to do a revo uninstall to make sure I kill everything and start over from scratch.
Here's the screenshots of the messages I get. I noticed that sometimes it just requires my password and after clicking on it (but not all the time) it will then require both my username and password. So basically I have to sign in twice on occasion before it will go to yahoo mail. The 999 message has only occurred once, but I attached it, too.
And BTW, you guys are a lot more help than yahoo is. They replied on Thursday and it said just to make sure I'm using the latest browser version. I sent a ton of into back and never got another reply.
I tried to paste the troubleshooting information but it is too big and won't paste into MS Paint, either. If you need it, let me know how I can attach it.
UPDATE (WITH SKY HIGH BLOOD PRESSURE AND AM ABOUT TO BLOW): 30 minutes or so later and it required me to sign in again. I'm going to have to wipe it and start clean.