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you have to delete over 5 times to get history and cookies to clear. Selecting "everything" never removes everything :( Used to be the best for privacy now its seemingly deceptive..

Hello,

It seems that Firefox has lost the ability to clear cookies on exit without also clearing history. This affects the current version, 153, but I started observing it a few versions back, maybe around 148.

In Settings -> Privacy and Security, if I select "Clear cookies and site data every time you close Firefox", this automatically enables "Clear history when Firefox closes". If I unselect the latter, the former also becomes unselected.

I would like to clear site cookies and data whenever I close Firefox, but not browsing history. I'm sure this used to be possible in the past. Is it an intended change that this is no longer possible, or is it a mistake?

Thank you.

It seems the default for allowing sites to store data locally is backwards (for privacy).

You should be able to set the DEFAULT to "Allow all sites to store data locally FOR THE SESSION ONLY," and then type in the sites that you would like to allow to store data locally for more than one session (or block entirely).

Is there a way to do this? There are not many sites I would like to allow permanent local data storage, so it wouldn't be such a terrible chore to type in their URLs. The opposite is true for sites I would want to allow ONLY FOR the one SESSION - that is a HUGE chore. This appears to be a privacy & security oversight - can you fix this?

Hello there's just been an update on my laptop for Firefox.. and now I'm logged out of every account I had opened on my browsers!! I googled this and seemingly this problem has happened before with Firefox..

History cache and browsing must be constantly cleared to access various sites. Ongoing, constant event to send this mail. Problem now. Bank site tech helped me trouble shoot Seems hitting Ctrl F5 bypasses (so far, it seems) he suggests you look at this ME, I am about ready to jump out of Firefox after years of pledging loyalty

Desktop and laptop--all upgraded with anti-virus software. Why does firefox randomly log me out of websites and delete my cookies--WITHOUT me doing anything? At work, my password book is at home--so being logged out is annoying and stressful Help me with telling me how to STOP being randomly logged out by firefox for no apparent reasons?? PLEASE!!!

I am using firefox on linux since ~10 years. Currently running latest FF on Kubuntu. I always had setting set to forget all cookies and session details except of search history on exit.

Since approx 2-3 weeks (latest update?) those settings don't work. FF remembers everything regardless of settings I chose.

Does anyone have idea why this is happening now and how to fix it?

Sometimes, after restarts, FF forgets every site I'm logged into. Open tabs persist, the login sessions do not. I have no better observation of when this happens, I'm afraid - it's not every time. Because of this it's very hard to reproduce reliably - over the past 2 weeks, it didn't happen and now it was 2 days in a row. "Clear cookies and site data" is definitely off. I have no extensions apart from Dark Reader and uBlock. Because my daily work requires me to use a dozen sites I have to log into, all using 2FA, this is incredibly annoying. I have also completely reset my profile, which did help for a while but then it started again - so I'm thinking the profile reset was more of a coincidence than actual causality.

All of a sudden I have had problems getting into my gmail or anything Google through Firefox. I have tried deleting cookies and it would work. Now it will not work at all. What has Firefox done? How can I fix this?

After uploading Firefox Update 115.35.2ser, Cookies and Site Data will not fully clear. The Clear Data button removes some cookies and data, but there is always 122 KB of disk space still there that will not be removed. I have deleted my add-ons, but that had no effect.

This happened once before (several years ago) but only went away with a new update.

If I use the "refresh Firefox feature will that fix the problem and if I use that feature will all of my bookmarks be lost?

For the last several weeks, one of my computers when it updated to the new settings menu (version 156ish?), it has lost the ability to maintain some of the synced profile settings. For example, I have a couple websites that I list in the exceptions to not have Firefox clear the cookies, and I additionally have the clear cookies and site data check box enabled so that every other website I visit clears upon exiting. This is the setting combination I have utilized for years to keep the cookies from only 2 websites and clear out everything else.

On one of my computers, I'm able to add the exception, and as long as I do not close Firefox, the website exception settings stick. However, as soon as I exit Firefox, and open it back up, the settings clear themselves again, and I have to manually enter the exceptions again. This is very frustrating because one of the sites that I keep the cookies on the exception list has multiple different logins saved so that I don't have to manually re-login to every time I open Firefox.

I have attempted a refresh, and that did not fix the problem. I have fully uninstalled Firefox, manually deleted the %APPDATA%\Mozilla\ folder contents, reinstalled foxfire and this too does not fix the problem.

The weirdest part of this whole issue is my laptop, does not have this problem and the exceptions are sticking so I know that this setting combo works. Additionally, I have tried unchecking the clear cookies and site data box and this too is not allowing the exceptions to stick.

I have also tried re-syncing my account to pull the settings from my laptop and this too is not working.

This experience is on Firefox 157.0.1 (64-bit), Windows 11 Pro 26H2

Thanks for your time and please advise as to how to fix.

Since FF 09/15/26 update manage cookies and data sites no longer will delete items. I click the 'save changes'. and that's it. All the cookies and data are still there. Hopefully a fix will be soon?