Clearing your Firefox cache and deleting your saved cookies for the site was going to be my first suggestion.

In case one of your extensions is involved, could you test the page in Firefox's Safe Mode? That's a standard diagnostic tool to deactivate extensions and some advanced features of Firefox. More info: Diagnose Firefox issues using Troubleshoot Mode.

You can restart Firefox in Safe Mode using either:

• "3-bar" menu button > "?" button > Restart with Add-ons Disabled
• Help menu > Restart with Add-ons Disabled

Not all add-ons are disabled: Flash and other plugins still run

After Firefox shuts down, a small dialog should appear. Click "Start in Safe Mode" (not Reset).

Any difference?

Please ignore

Well, yes, there's a small difference. Before, when I logged in on the Ebay home page, it came back with "Hello Mike" - it recognised the login. Since trying in Safe mode, it doesn't recognise me any more at all. I don't know if this was a result of attempting a login in Safe mode, or whether it has happened for some other reason since I logged in last time, which was yesterday. I have tried both in Safe mode and in normal mode.

With Chrome, it still works perfectly.

Cookies is where web sites stores information about you, including log-in data. Removing the cookie removes the websites data.

Could you check your cookie settings and make sure you are not blocking "third party" cookies? This article has the details on modifying those settings: Websites say cookies are blocked - Unblock them.

Many thanks for that. I found Ebay in my Blocked Cookies, and when I removed it, all was sweetness and light once more.

Problem solved. Now I can get rid of Chrome again.

Hello,

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