Safari 15 keeps logging me out of several sites every week or so

I have the same problem, although not every week or so but rather several times a day – this does not feel good. I am fairly tech savvy and had "everything security and privacy" under control, I definitely don't like it when software overrides my previous settings without consent.

I’ve had Safari’s developer tools enabled since early April and somehow enjoyed a nice two-month spell that was free from this pestilent bug, but I suffered a relapse an hour ago after running some snippets of JavaScript in the console. My first clue: performing a Google search and noticing that the background color was white when my search results loaded. I’m a dark mode user, so I braced myself for the fallout: as expected, all my sessions with Facebook, Twitter, LinkedIn, GitHub, eBay, Amazon, and Gmail were gone.

Logging back into most of these sites results in a raft of security alerts that arrive via email and/or push notification. They all say variations of the same thing: “a login was detected from a new device we don’t recognize.” They usually contain links to the site so you can take immediate action to change your password. Somehow Google’s security page knows the name of my machine (SBP) and puts a little blue checkbox next to it, identifying it as “this device”. How Google ascertained that bit of private information is an alarming head-scratcher. Yes, I am logged into Gmail under “Internet Accounts” in macOS, but it’s curious how Google is able to correlate that connection with a “new device” it did not recognize minutes earlier.

So all of these big technology companies must be using a device-based login technique that relies on some kind of fingerprint they derive from the information Safari gives it, probably a hash generated by JavaScript from a number of factors. And somehow interacting with Safari’s web developer tools can corrupt that fingerprint and make us a total stranger to major tech sites.

I’m a web developer, but I only work on small-time sites that use unsophisticated cookie-based login sessions that have been around for decades. These types of sessions are still working fine in Safari 15. I would love to hear from a developer who works on big-time tech sites that rely on device-based login techniques. Their insight would be interesting.

I may just be lucky, but after nearing a year of this problem I followed the first two steps in this post on the developer forums explaining how the user there fixed it by:

Resetting all experiments: Develop -> Experimental Features -> Reset all to defaults

Re-enabling Safari -> Preferences -> Privacy -> enable "Prevent cross site tracking" + enable "Allow privacy-preserving measurements of ad effectiveness" (I suspect this is the issue but not sure)

I initially had several sites log out once, but I haven't experienced any further unexpected logouts in over a week, even when using the console/inspector. I hope I didn't just jinx myself 🤞

I'm running Safari 16.1 on Ventura 13.0 and a 2.9 GHz Quad-Core Intel Core i7.

Hello there radozd,

Thanks for posting here on the Apple Support Communities! This is a place where other Apple users can submit questions or respond to others to help lend a hand. Let's take a closer look as we do our best to provide some additional insight.

We understand some websites require you to sign back in more often than you're used to. Typically, this is controlled by the cookies or security settings as directed by the website itself. However, let's make sure Safari is set up to make sure they stay logged in as long as possible.

To get started, have you also tried completely resetting Safari by clearing all Safari history? We can do that by selecting Clear History from the Safari drop down menu next to the Apple icon.

Also, be sure to test with other Safari settings by going to Settings > Privacy. Some settings that help further protect your privacy and how websites can track you, can also lead to them signing you out sooner than expected: Change Privacy preferences in Safari on Mac

We hope this helps get you pointed in the right direction.

Take care.

I have tried various things. Eventually it stopped and I am no longer experiencing this annoyance. I can]t really tell what solved it in the end, but I did do a complete restart at some point. Maybe that was all that was needed. Hope this helps someone.

I have the same issue, I had opened a Feedback ticket/radar, but then closed it a week later because the problem disappeared. Unfortunately it is back. It really happens on many website all at once. For some sites it seems to forget everything that was stored locally on the client. For example the AWS web console usually remembers my account number and the services I last used. But after this "forceful" logout, everything is gone. It is as if I have never logged in to AWS before. It drives me nuts.

I'm still having this problem and I've restarted multiple times. I'm up to date with Safari and Monterey. It's really disrupting my work flow. I'm getting logged out of absolutely any website that requires a login session multiple times a day. This includes

• All google sites
• All Atlassian sites
• Lucid chart
• Amazon

Just to name a few of the common ones. This started immediately with the Safari 15 update. I have changed zero security or privacy settings from 14 -> 15.

Happening to me with Twitter and other sites, logging me out several times a day since upgrading to Safari 15 and Monterey. I have not changed settings myself. Restarting doesn't help. Won't bother clearing cookies since it hasn't worked for others. This is clearly a bug introduced with the upgrade, please fix forthwith.

It keeps randomly hitting me. I had the same issues after upgrading. Then it seemed to go away for about 10 days. Today, it's constantly reset itself. I'm getting sick of having to go through two factor authentication, to then repeat it again, half an hour later. The only difference between today's activity and yesterday is that I have Visual Studio running and had Safari set as my testing browser.

I'm not happy any of us are experiencing this issue, but I am happy to know that I'm not the only person with this situation. Nothing I've seen online seems to be an appropriate fix. Hopefully, Apple addresses this soon.

У меня аналогичная проблема. Facebook, Yandex, Google, Youtube, Twitter, Instagram, VK и другие сайты. Техподдержка ничего не может сказать по этому поводу, кроме как "так и должно быть" или "возможно, это проблемы сайтов, которые вы используете". Но: во-первых, все сайты сразу не могут производить разрыв сессий; во-вторых, в других браузерах такого не наблюдается.

I have a similar problem. Facebook, Yandex, Google, Youtube, Twitter, Instagram, VK and other sites. Technical support cannot say anything about this, except as "it should be" or "maybe these are the problems of the sites you are using." But: firstly, all sites cannot immediately break sessions; secondly, this is not the case in other browsers.

GUYS! The Safari Technological Preview (15.4) which I have run side by side with Safari 15.1 now for a week, does not have this issue. So even though I do not think this problem will be fixed anytime soon for the stable version, there is at least some hope.

Keep filing for bugs though!

I've downloaded and started using STP since reading this thread with success, so far. I do use a USB-C hub to power two external monitors and wonder if that device is somehow to blame for the logouts. Also, most of the logouts happen when the computer goes into a sleep mode. For now, I'm glad I have a workaround.