Hi Andavari,
Thanks for your reply. Yes, favicons is the word that I was looking for.
And thanks for the link to the Firefox configuration settings via the address bar… I didn’t know about that.
I’m sure your solution would successfully remove the favicons from the browser, but what I’m more concerned with is that that single persistent eBay favicon in the bookmarks is an indication that I’m being tracked by eBay when I don’t want to be, and when I’ve adjusted all the settings (and used CCleaner) not to be.
*****
After some more research I found seven eBay cookies--
EBAY web page in Firefox 3.6.24 ...
Tools > Page Info > Permissions
In "Permissions" I had to change Cookies from “Allow” to “Allow for session”
(Only 1/2 of the cookies were set to expire at the end of the session.)
Then I wondered about (and re-checked) my Firefox privacy settings, which were set to “Start Firefox with Private Browsing”
Un-checking "private browsing" and instead using "custom settings" provided me addiitional privacy options.
("custom settings" also permitted me to find an additional ten ebay cookies)
So whatever Firefox's "Private browsing + don't remember anything + clear everything on exit" is, it's not really private at all.
Private browsing should be left unchecked and “Customs Settings” should be used.
Thanks again for your help.