Firefox Community Forum

Hi. I tried to log in to my new bank website today and it's asking me, each and every time, to fill out the pass code it has sent to my email. I went in to settings on Firefox and added the website as an exception so that the cookies for that website aren't deleted and, lo and behold, when I try to log in, again the bank website is challenging it as a new device and sending me a one-time code! So, for some reason, it hasn't saved, or at least not registered, the fact that this should be a safe website where cookies are saved!

I'm trying to copy and paste the list of exceptions to show you but it's not allowing me to copy and paste them.

Can you please clarify how I can add these cookies so that the website doesn't see my desktop as a new computer each and every time I log in to my account on my desktop?

Certain web sites want to identify my computer ass a trusted device but the cookie that does this is erased every time I shut down Firefox. Is there a way to save a cookie? For these 3 sites only.

My manage exceptions list is now being cleared out and clearing out all the cookies and site data with it when I close my browser with the "Clear cookies and site data every time you close Firefox" checked off.

It should only be clearing out cookies and site data for everything outside of the allowed things in the managed list.

I think Firefox’s two separate settings for website data are somewhat confusing and redundant; “Custom History” under “History” involves and duplicates the functions of “Browsing Data,” and “Browsing Data”’s “Clear cookies and site data when Firefox closes” I want to simply achieve allowing cookies to be saved only for a few specific websites and clearing all other data on exit. Edge can turn off “allow sites to save and read cookie data” and directly add exceptions, and it also has only one option for choosing what data to clear on each close, which is more concise and clear enough. If possible, I hope the technical staff can make changes to this, preferably by referring to Edge’s conception for this part.

Note: This was translated by AI from Simplified Chinese and may contain incorrect expressions.

Hi,

I am in the process of migrating between systems. I have my desktop with Firefox, I use some multi account containers, I clear cache and cookies on browser close and I have some exceptions to not clear cookies, as I want to stay logged into my accounts. It worked fine on my desktop.

Now, I tried to do the same for my laptop. I turned in account sync and add on sync, my browser settings and containers are indeed synced. But the exceptions are not synced, so I tried setting an exception for some of the sites like my desktop, logged in, closed browser, and I am not logged in anymore. Nevertheless, the exceptions are still remembered.

Some details:

   On my PC, The exceptions are both in the Browsing Data section and in the History exceptions. So I tried setting the exceptions to both on my laptop too, still no success.

   On my desktop (where it works), I don't use the "Always use private browsing mode" option, and on History->settings "Cookies and site data" are checked, and "Site settings" is not checked.

Can anyone please help me troubleshoot this? I really don't think it should be that hard, maybe as Firefox updated it became bugged or something?

Thanks in advance.

Every time I close Firefox, I lose cookies for banking, financial and news access requiring me to go through a lot of effort. re-establishing cookies with painful waste of time, I am hoping a change to the config files will override user settings that delete everything when firefox closes.

Failing that, can you designate which cookies are permanent anywhere in your application?

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?

In the past couple of weeks (say Sept 2026), Firefox has started signing me out of everything when it closes or updates even though 'clear browsing data' is UNchecked. What else can I do to stop this?