I frequently visit the Mozilla Add-ons pages. If you wish to comment on an extension, or ask a question, you must create an account and log in. I have already done this a long time ago. Yet every single time I leave the Add-ons page, and then return, I have to log back in again. For some reason my email address and password are not being stored. Very annoying. There are no programs running on my PC that are deleting Firefox cookies. Any ideas about this?