Firefox Community Forum

When I try to log on to a particular web page using my password, I get an error page. When I do so using the Private browse function it works. Following is the error I get: {

 "callId": "019a1701de257ed0a722da6257f2896e",
 "errorCode": 403005,
 "errorDetails": "Unauthorized user",
 "errorMessage": "Unauthorized user",
 "apiVersion": 2,
 "statusCode": 403,
 "statusReason": "Forbidden",
 "time": "2025-10-24T16:16:29.758Z"

}

Does anyone have any great ideas??

ブラウザゲームサイトUnityroomなどでゲームを遊んでいると、Cookieの容量が10ギガバイトを超えることがよくあります。 どうやら10ギガバイト以上のcookieをFirefoxでは保存できないようです。 FirefoxでのCookieの容量を10ギガバイト以上にしたり、ページごとに個別に管理できるようにしてほしいです。

I have FireFox set up to reset every time I start a new session which causes DuckDuckGo's AI search to reset every time. Does anyone know how I can set it so it doesn't do that? It's annoying always having to disable to every time I open a new session.

As has been mentioned many times before I am sure, it would be really helpful to be able to have a less laborious way to add exceptions but as I have been through the ridiculous process of typing in site addresses manually one by one without having any sensible way to record these addresses already I guess it won't help me now. The ridiculous aspect came from having to take screen shots of the list of sites from the manage data list after deleting everything not wanted, scrolling down a windows worth at a time, copying that screen shot into multiple copies of a graphics program then shrinking each copy of the graphics program and Firefox so each can be seen so I can manually type each address across.

I know I am supposed to be nice but this is just insane. It is 2025. There is a thing called copy and paste. Apparently some people at Mozilla are not aware of this.

Having got that off my chest the next issue is that the deletion of cookies and data only occurs when Firefox is closed. Who closes Firefox? Why would you close Firefox? I currently have 24 tabs open. Why on earth would I want to close them down just so they have to be selected one at a time and reloaded? What is the thinking behind this stupidity?

The only time I close Firefox down is when Windows is restarted for updates (every application) or when IDM needs to update as I found this negates the need to restart Windows (Firefox only).

Other than those situations I am trying to work out how to fit this cookies/data deletion into the normal operation of my computer. There appears to be a lack of a suitable way to deal with this situation. Would it be considered acceptable to just wait for those times Firefox has to be closed? This would be far better than what I have been doing up to now but why wouldn't Firefox delete this data when the last tab for a site is closed? There are a huge number of sites I bring up due to searching for something and close them immediately or after reading what they have to say.

I have been using computers for about 30 years and have long lost the inclination and to be honest the ability to delve deep into them. Today I just want to have them do what I want/need without unnecessary complications.

Have I got this situation right or is there something I have missed? At the moment IDM has been having a lot of updates thanks to YouTube's greed but before that I found I generally only had to restart my computer for MS updates and when strange things started to happen.

Hi, I have Mozilla Firefox for Windows. How do I do if I want to delete cookies from the past week? The clear history option only seems to have last hour, last two hours, last four hours, since midnight and "All history". I have a website that doesn't work that I suspect doesn't work due to a cookie issue (as it is a website that I have visited with other browsers and whenever I get the behaviour I just clear the cookies from the past visit and it starts working). I therefore need to remove cookies from the past week (or some other time period that I can specify myself), because only since midnight won't do and I do not want to remove all cookies since I got Firefox. Selectively removing cookies from one specific site is not an option etiher, unless I can remove them from the past week, as I don't want to remove older cookies from that site.

I keep getting a message when loggin into my gmail account to enable cookies. I'm using firefox so I assume that's where it want cookies enabled but I don't find a setting for it

I've been trying to get Firefox to save cookies for a few desired websites (bank, investment accounts website, Sync... and of course Firefox/Mozilla itself) so I don't have to constantly use the 2FAs for those accounts. Firefox refuses to keep me logged in to my Mozilla/Firefox account. Every few hours -- or at the very least, after a machine shut-down -- I have to re-login if I re-start Firefox.

I do not use the Firefox Password Manager; it's unchecked in Settings. Nor do I use the Autofill options in Settings. I use the Bitwarden Extension (set to Never for locking/logout -- because this is a home computer) for Firefox to log in to my sites, with a separate authenticator app, Authy.

The Firefox Privacy & Security Settings for tracking cookie blocking are the Standard ones; I haven't done anything to customize them. Further down on that page, I've tried leaving the box blank for clearing cookies on exit. I've tried checking the box and setting up exceptions for those few sites I'd like to login to without having to go through the 2FA rigamarole. I've done multiple Refreshes, clearing of History, uninstall/reinstalls including deletion of every Firefox profile and anything hinting at a connection to Mozilla or Firefox in all Users on the computer, including all the AppData folders. A few days ago, I even deleted the Mozilla/Firefox account and set up a new one with a different email address.

Nothing seems to work. Most recently, Firefox still had all the relevant cookies after the computer was shut down overnight, but an hour into my day's work, after closing Firefox and re-opening it a short while later, all the cookies are gone once again!

None of this was an issue about three months ago. I could save the desired cookies, get rid of other ones, use private browsing, etc. etc., with basically the same set-up and with the Mozilla/Firefox account I had had for years. Now, I've had to delete that account in an apparently vain effort to try to clear out anything "Mozilla" from this computer -- and it didn't work anyhow.

(I posted about this same issue a week or so ago, but didn't receive any responses and have now deleted that Mozilla/Firefox account -- see above -- so this message is an update.)

Trying to add my yahoo email account to Gmail. Keep getting message Must enable cookies on browser for yahoo account.

Have tried Firefox process shown in past posts. Keep getting redirected to same page on how to enable cookies.

Screenshots shown on earlier posts by “Jon…” not legible.

Thanks for your help!!

Think I've asked before, but I'm still having the same issue: in my Firefox (desktop, Windows 11), in the storage\default folder in my profile, there are, today, 5442 files! 416 folders appear here, with each one containing one or more folders ("Is", "idb", and/or "cache"), which, in turn, contain several files each, and a ".metadata-v2" file. The oldest of the 416 folders in 9/16/25. What is all this? I regularly delete all cookies over 30 days old in Manage Data.

I prefer all my login accounts to log out when I close Firefox. All of my settings are set up to do so, nothing changed, yet suddenly for the last week or so, it has simply stopped logging me out. Every day when I log in, there everything is again. I keep rechecking all my settings, even turning them back off and on, and nothing is fixing this. What's going on?

I asked this same question in Reddit and got a reply to uncheck "delete cookies and site data when Firefox is closed", close all Firefox windows, and reopen them, and this did not correct the problem. Please advise.