Firefox Support Forum

Firefox was working well on HTTP websites until a few days ago, but now HTTPS-Only Mode seems to be permanent. Despite changing settings to 'Don’t enable HTTPS-Only Mode', when HTTP sites are selected I get the same message as for 'HTTPS-Only Mode'. Also, if I select 'Enable HTTPS-Only Mode in all windows' and add exceptions, I get the same result.

Currently my computer is defaulting to Yahoo or Google. Two symbols come up for Firefox on my desktop and both seem to open all the time. Please help me to get a secure connection with Firefox as I feel my Yahoo account has been hacked. Thank you.

HI. Firefox seems to be logging me out of all my sites when I turn off my desktop. In some cases, it won't even let me access certain login screens. I've already followed instructions about resetting cookie/login/search history settings, etc, but it doesn't seem to fix the problem. Any ideas/advice?

For some reason I can't access the Spotify website (spotify.com or https://open.spotify.com/). I get this error message:

Page not found - We can’t seem to find the page you are looking for. Any ideas? This is infuriating. I'm on a Mac running Ventura and the newest version of Firefox. Thanks.

Something in the last few Firefox updates is now preventing me from logging into the admin interface of my home router (Sonicwall TZ570) and wifi access point controller (Unify Cloud Key). I have had these devices for several years and Firefox has always allowed me to make an exception and connect to the "unsecure device. Microsoft Edge is giving me the same problem which started about the same time a couple of weeks ago. I am on the latest version of Windows 10 64bit and Firefox is up to date. The Brave browser still works as it should (see first screenshot), but Firefox gives me the "we could not verify the certificate: reason = untrusted" error with no way around it (see second screenshot). I do not have HTTPS Only Mode enabled (see last screenshot) and I don't see any other security setting that should affect this.

This is my home, not a business and I do not have a domain nor a SSL certificate and I should not need one.

Any help will be greatly appreciated. Thanks!

I'm trying to connect to my Schneider XWPro Gateway for access to my solar inverter, and security policy on Firefox no longer't allows access. I can access using Safari by explicitly allowing access. Error from Firefox is as follows:

Secure Connection Failed

An error occurred during a connection to 192.168.1.120. You are attempting to import a cert with the same issuer/serial as an existing cert, but that is not the same cert.

Error code: SEC_ERROR_REUSED_ISSUER_AND_SERIAL

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem

Your error message states there is a problem with a certificate conflict, however there is no apparent way to tell which certificate is causing the conflict, so there is nothing I can do about it. This is a new problem, I have been able to access this device in the past.

Any suggestions?

I just installed Firefox browser and finished my setup, but I am getting SEC_ERROR_UNKNOWN_ISSUER error while trying to connect Google and youtube. I do not use any antimalware or proxy. I tried reinstalling but not work. I am getting this error in just YouTube and google.com, ı just discovered these two at least. full serificate chain:

MIIDcjCCAlqgAwIBAgIQYeRTCOvQSaFB2YW9ekWACzANBgkqhkiG9w0BAQsFADAj

MSEwHwYDVQQDDBhEaWdpQ2VydCBHbG9iYWwgUm9vdCBHMUEwHhcNMjAwMjA2MDgz

NzI4WhcNMzEwMjA2MTEzNzI4WjAZMRcwFQYDVQQDDA53d3cuZ29vZ2xlLmNvbTCC

ASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANvpzRFO8jzehL+JMwjevQCU

WzYKHngYxZHrDJPvqdcy9+aBtp1IiIh1GUiX42XFvp0fBv11KmAOOGWfMHIC/Hsn

UUGs1FLHRDbAdtbkLw/v2nFQkW6iUwj2whHlUFyjnsADOBtZ19I7VRweNsnmVXB/

Y7sSjR8Iyx6pdismLdAUQSsaMZnxO4sBSUX1rNai5d6WsY+JNc5Bs3qaFIbEjZbd

GsbeasCkTAGiRFf8hKtF1gueeCMsX465vqGYYnRWeZlfagt5dV3hZzjkkm6VKDUn

ln+1VgEh+GNVjj1NgU9POtFwlVpGg13QdcJscujDWLCaUSEWxU2YsWglLjFwic0C

AwEAAaOBqzCBqDATBgNVHSUEDDAKBggrBgEFBQcDATAMBgNVHRMBAf8EAjAAMA4G

A1UdDwEB/wQEAwIFoDAzBgNVHREELDAqgg53d3cuZ29vZ2xlLmNvbYIMKi5nb29n

bGUuY29tggpnb29nbGUuY29tMB8GA1UdIwQYMBaAFKp0jSpl6T3v8u2szpwbKbC8

2hmlMB0GA1UdDgQWBBR88CK2t66k1XsBxMLbYMUmRljlZjANBgkqhkiG9w0BAQsF

AAOCAQEAUxEzt0qipa8rliwJfId7UmVoanvq/YVAHk+3ZwDLpz9OCTJCxta0Nz4o

Y2yAkEN9Sw3sO8/5kiW+VaQqu8YYgBaiNdaE87AyiZ27ceX/i3RMlcqR4UFIMma9

UB0oQ6rVNZ6/C26tpul9CuvlNTxax1KNTqQ0vGMQ3UuzLhSwxtKqnV28hg/DyRH5

GA4uqcOJr80S169PvayBeZ9kA7pTnRira9ZuBD8G9t8jfgvjTV2dfY5gaShxB0Jn

G2zupuJBH7MMf4gezt5Qi8qf7U1S3/TUffhuf9EnDMetjvDaD3QYoycgSBzq2Bvv

xby+81RmT4MkQU0wfbTEuwEJ2ANcZw==

TLDR: Firefox offers me to save the credentials that are already saved.

I have saved passwords on Firefox. In order to log into my email, I use the saved log in credentials (which means I do not need to type out the credentials). It allows me to sign in, as expected, except that it asks me to save (again) the credentials, as if I have filled in the credentials manually for the first time.

I have Firefox 117.0 on Windows 11 computer.

Thank you.

Has the Autofill Forms option been removed from the latest version of Firefox? I get the opportunity to autofill credit cards but the Forms section seems to have vanished. Am I missing something? Thanks.

When I sync my settings between two computers (one Windows 10 and the other Win11) the Managed Exceptions are not sync'd. Is that normal? For example, if I add Amazon.com to my Win 10 computer, sync and then check the Win 11 computer the Amazom.com entry is not in the Windows 11 machine > Settings > Privacy & Security > Manage Exceptions entry.

firefox is not prompting the primary password login dialog box and not even providing me "saved login"

Even when i tried to open password in settings so that i can manually copy paste them, it ask me to log in first as shown in picture but when i click on login, nothing happens, it does prompt primary password login dialog box.

as shown in picture below, even if i click login, it just does not work.

p.s tried clearing cash and cookies.

I occasionally use a site (www.zoomcare.com) which does not work properly with Firefox (I've been using Microsoft Edge (Windows 10) to access it). The problem comes when I try to login. I enter my username and password, and that brings up a blank page that does not redirect to anything, so I'm stuck.

Just out of curiousity, I was looking through Advanced Settings, and found security.csp.enableNavigateTo. It has been set to false, but when I set it to true, I am able to successfully login (I still go to the blank page, but after a brief pause, I'm redirected to a logged-in page).

I'd like to know something about the security implications of enabling this property. Is it a bad idea? (Not knowing, I've set it back to false and will continue to use Edge for now).

Hi, I have been wanting to switch to Firefox for a while now and I have imported all of my data from Chrome onto Firefox. All the other members of my household use Firefox on their Mac laptops and iPhones. I have only ever signed into my own account on Firefox, and in the same way I have only ever signed into my own account on Mozilla VPN, which I have used for over a year while living elsewhere and have never had a problem with this. I also have only my own Google account in the data imported from Chrome. I have no one else's information for any account on anything in my device nor, to my knowledge, do they have any account information of mine on theirs. However, sometime in the 10 or so months since I imported my Chrome data - around the same time I moved into a house with others who use Firefox - my laptop's Firefox seems to have...connected somehow, in a way atypical with normal syncing, with the other devices in my house. Occasionally, when I open Firefox on my computer, whatever tab another household member has open on their computer will open instead of a homepage. Also, a little icon pops up occasionally to tell me Firefox is "open on iPhone" when another household member is using Firefox on their iPhone. I use an Android which does not have Firefox installed, so it's not a glitch syncing with my own device. I do not know how this happened and I do not know how to stop it. There doesn't seem to be any evidence of this connection in any place I can see in the preferences window, nor can I find any way to permanently unsync my device's Firefox application from anything unless I sync something first. Any ideas? I'm not that terrible with computers lol, I swear!

Greetings Firefox Support/CommunityL

While reconnecting one of my computers to my Firefox account I saw at the top of the Settings Page: "Your settings are being managed by your organization". Problem is that I don't belong to any organizations or enterprises having anything to do with my online life. I have been hacked in the past and am paranoid when I see something that doesn't make sense. When I click on the link (trusting that it is indeed from you), it takes me to your Enterprise Policy page showing the following:

Active Policy Name Policy Value

DNSOverHTTPS Enabled false Locked true

I always use secure DNS (DOH or DOT) on everything - network adapters, routers (except the ISP one whose default I can't figure out to circumvent) etc. but on the browser setting pages I am only given the option of having it off: the default, increased, and max protection options are greyed out and cannot be chosen. I guess that explains the policy values but who locked it? My only guess is that is use a Surfshark VPN and realize that in so doing I am using Surfshark's DNS servers but I believe I had this problem before using the VPN. Any help would be greatly appreciated. Thanx.

Pat Ford - dpfmd@msn.com

Hello Team,

I have installed Smart Card Minidriver on Windows Intel and installed firefox 64 bit version intel based. Mutual TLS is working as expected with Minidriver (Microsoft Base Smart Card Cryptographic Service Provider). Tried to use PKCS#11 dll and it is also working.

In the same way,

I have installed Smart Card Minidriver on Windows ARM64 and installed firefox ARM64 bit version ARM based. Mutual TLS is not working as expected with Minidriver (Microsoft Base Smart Card Cryptographic Service Provider). But when tried to use PKCS#11 dll and it is working.

I have questions here:

Firefox ARM64 on Windows ARM is not working mutual TLS with Microsoft Base Smart Card Cryptographic, Service Provider, Is this supported?