Your ‘logged-in’ status is stored in special cookies. If the cookie is removed, you are logged out.

If you do not log out, you will remain 'Logged In.' One thing you can do is use the settings below to clear your logged-in status. But this will remove all the log-in cookies. Not just a few.

Type about:preferences#privacy<enter> in the address box. The button next to History, select Use Custom Settings.

Turn on Remember My Browsing And Download History At the bottom of the page, turn on Clear History When Firefox Closes. At the far right, press the Settings button. Turn on Cache and Form And Search History and whatever else you want.

Thanks. I have the clear all history items when I close Firefox. I've manually cleared all history items for everything.

But the strange thing, is I've removed all Mozilla folders under %appdata/ roaming and Local. Reinstalled Firefox. As soon as I copy the email link that I have stored in notepad, it will auto log into Nextdoor with no password prompt. I've changed the password for Nextdoor even. It is the strangest thing I've ever seen.

Where else could the cookies be stored? I've tried to follow on procmon logging into firefox and into nextdoor. I've also tried to step through in dev mode in Firefox, I'm clearly not a developer though.

Using the instructions from my last post, turn on Active logins.

I did as mentioned above. It has not made any change.

I would suggest anyone that uses nextdoor to try this. Copy an email link that is sent from anyone. Clear all history and absolutely everything in Firefox. Everything. Disable all add-ins etc. Paste the link in the browser and see if it auto logs in. I've tried this on Chrome, Opera, IE, but in Firefox it just logs you in. I can log out of Nextdoor properly. But if I close Firefox and bring it back up and paste the link, it auto logs in. If I clear all history cookies etc while the page is up, it finally acts as no one is logged in. Paste the link again and boom logged into nextdoor with all my info and settings etc.

. . . it auto logs in

Do you mean you don't have to sign in, or the login data is already filled in?

If the latter, that is the Password Manager built into the browser.

For some reason I dont think its doing it anymore. This has been happening for months There was just a new firefox update too.

I'm telling you, there was something whacked out with the website/Firefox. If I reinstalled my pc, moved my firefox profile to appdata/roaming, it would start doing it. But if I removed firefox and cleaned everything from appdata/ for Mozilla, c:\programfiles etc, reinstall firefox, it would still log me right into nextdoor without a user/password But it had to be a link from email (that I copied in notepad so I wasnt logging into any website). Cleared all possible webdata, no passwords in the password manager, clean profile. I even tried to hotspot with my iphone to get a different IP and everything.

I cant say why its not doing it, but I am 100% happy. It seemed very insecure.

Delete browsing, search and download history on Firefox {web link}

Remove a single website from your history {web link}

Open the History Manager <Control> (Mac=<Command>) <Shift> H. In the search bar, enter the name of the site. Right-click on one of the listings and select Forget About This Site. This should remove all information, including any site settings And Passwords.

Thanks. I think its fixed in the newest Firefox update. Strange because its been doing this for several months.

As a test I uninstalled and put 96.0.3 on and moved my firefox profile back over. Cleared all history. Went to the site as you instructed and "forgot" the site. I could still auto login to the site without any username/password from an email link from Nextdoor. I could clear al history, everything possible, no passwords in password vault.

Upgraded back to newest version, restored my profile again. Cleared all history and did the forget site after clicking once on the site (because there was no history) and I cannot get it to auto login anymore.

Maybe someone made a bounty off this and made some money. Either way its fixed I think.

The site is kind of shady to begin with. It drove me nuts because I have always had Firfox clear all history on exit so other sites werent collecting as much info like Facebook. But I started to notice that Nextdoor just kind of signed it by it self when I clicked on a random update email from my email. I thought it was connected to my gmail account at first and it wasnt. Changed passwords for gmail and nextdoor etc. Nothing helped. Removed FIrefox profile, still just logged in.

Its fixed this can be marked as resolved.