Firefox Community Forum

Recently, websites (e.g., YouTube) have stopped keeping me logged in. I've already checked all the security and privacy settings, but haven't found anything that seems to be causing this.

I hope someone can help me. It's really annoying having to log in to all the websites every day.

Hello, I encountered an issue today where, upon starting my PC and opening Firefox, I found that I had been logged out of every website. My bookmarks, browsing history, and extensions are all still present, and I am using my usual profile. However, all active login sessions were cleared. I haven't changed any privacy settings recently, and I'm wondering if this is a known issue following a recent update or if it indicates a corruption in my profile's cookie storage. Could you please advise if this is a "normal" occurrence or if there are steps I should take to prevent this from happening again?

I look forward to hearing from you. Best regards, Luka.

I have Firefox set to "Delete cookies and site data when Firefox is closed" and also "Clear history when Firefox closes" (with everything set to clear except site data).

Then I have an exception list of sites to save cookies and site data for (for example, youtube.com).

The problem I have is that not all of the cookies are deleted when I exit. In addition to the sites on the exception list, there are others not on the list that remain.

For example, in the screenshot, this is a cookie from gleam.io. It's setting it for domain .youtube.com, and this is one of the cookies that remains. I believe it's remaining because youtube.com is on the exception list. However, it should be deleted because it's for the gleam.io site. If I check the browsing data in Firefox after restarting, it shows up as site=gleam.io.

Furthermore, I question whether the cookie should be allowed in the first place, since I have Strict Tracking Protection enabled, which should disable all cross-site cookies.

Google sent the following message when I tried to open a Youtube video.

We've detected a problem with your cookie settings. Enable cookies

Make sure your cookies are enabled. To enable cookies, follow these browser-specific instructions. Clear cache and cookies

If you have cookies enabled but are still having trouble, clear your browser's cache and cookies. Adjust your privacy settings

If clearing your cache and cookies doesn't resolve the problem, try adjusting your browser's privacy settings. If your settings are on high, manually add www.google.com to your list of allowed sites. Learn morei

I need to find how how check if cookies are enabled on my Firefox browser

Why are you NOT clearing browsing data. I click on clear browsing data. Temp Cached files goes to zero. When I open a new browser that data still remains. I insist that you clear data for real not just for show!

Hi, After the latest update, I experienced unusual Firefox behavior. When I turn off PC Firefox signs me out from all sites and when I open them it also requires me to accept cookies again (on any site, even when I visited it in the previous session). I thought that the update accidentally turned on the option to delete cookies after closing Firefox, but I still have this option unchecked in settings. I can also still se all my previous cookies in settings. Passwords are also still saved in Firefox password manager. The PC is new (3 months) so I don't expect it to have memory problems.

Should I go back to the older version of Firefox? Any help will be appreciated. Thanks

System: Windows 11 Pro 25H2, Firefox 146.0 (20251205151434), I don't use any Add-ons