I care very much about the privacy and always surf the Internet using the private mode of the Firefox. Also, I never let any browser to save my account and password. Theoretically, the web browser or any website should have no idea about who I am if I do not log into any account.
However, today I noticed that the all-mighty Gmail knows my name even before I logged into it! I remembered that in the good old days, Gmail was asking for the account and the password at the same time when I wanted to sign in. But things are different this morning.
When I opened the Gmail page, it asked me to provide my account only. After I gave it my account, it showed my name on the page correctly and asked me for the password to log me in. Then I came up with a question that "does this mean I can know the name of the owner of any Gmail account through this way?"
So I made two experiments:
- I tested the Gmail log-in page with some other Gmail accounts but it refused to show me the owner's name of the accounts. (Actually, I am the owner of the tested accounts.)
- I launched a browser that has been forgotten for a very long time, AKA the legendary IE, to log into Gmail again. Not surprisingly, Gmail cannot recognize me with only my account provided.
Well, it seems that there must be some sort of ways that Gmail links my name, my account, and my Firefox all together, so it feels comfortable to show my name in my Firefox when I am not signed in any Google account. But I thought the private mode of Firefox should guarantee that such thing would not happen to me.
Okay, so here are my questions:
- How does Gmail link my name with my account when I visit it using Firefox with private browsing?
- How can I stop it?