Many site issues can be caused by corrupt cookies or cache.

• Clear the Cache and

• Remove Cookies

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.

Type about:preferences<enter> in the address bar.

• Cookies; Select Privacy. Under History, select

Firefox will Use Custom Settings. Press the button on the right side called Show Cookies. Use the search bar to look for the site. Note; There may be more than one entry. Remove All of them.

• Cache; Select Advanced > Network.

[v57+] Select Privacy. Across from Cached Web Content, Press Clear Now.

If there is still a problem, 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?

While you are in Safe Mode;

Try disabling graphics hardware acceleration in Firefox. Since this feature was added to Firefox it has gradually improved but there are still a few glitches.

How to disable Hardware Acceleration {web link}

Hi Fred,

Thank you for your response to my question. I have not yet done the things you suggest because this problem just happened to me today and I am very cautious with my computer. I have already had the geek squad in my computer and there was nothing they could do. Compuserve could not help me either and told me it was a firefox problem rather than a compuserve problem. The problems not being able to log in with firefox have been considerable today. I cannot bookmark my mail, I don't even know how to put them in favorites which are the content of other browsers. I love firefox and don't want to use another browser nor do I want to lose access to other websites where the settings would be taken away. I still don't know exactly what to do. Are you sure that your instructions would fix my problem? I can ask the geek squad to read your instructions and try to apply them to the problem but I don't always get a great technician from geek squad. Looks like I may have to change my 20 year compuserve account and go with gmail or some other mail.

Thank you again. Sharon

srpoet825 said

Are you sure that your instructions would fix my problem?

We won't know that unless you try the above.

Found screenshot posted by questioner; https://support.mozilla.org/en-US/questions/1209654