How can Google browser or Firefox check the storage time of passwords or cookie?

recently, a terrible incident happened. After I opened QQ Mail"s web page and logged in, I found that a strange QQ Mail logged in and saved my password. My heart thumped for a moment. No one used my computer recently. When was this saved? I"ve been writing a paper lately. What"s going on? Then I tried to click to log in, and the password was wrong.

then press F12 to know his password and try to log in to his QQ directly, which is still wrong. I don"t want to know his password, I just want to know who he is, and he"s not my QQ friend, which is really embarrassing.

Please tell me how to check the password save time or cookie save time!

Backend frontend password cookie Information-Security

May.30,2022

enter chrome://settings/content/cookies
in the Google browser address bar and then you can view all the cookie information, including creation time, expiration time, etc.

this is obviously the password saving function of the browser. Think about where else your browser account has logged in

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