Komunitné fórum Firefox

Hello, thank you for taking the time to read my request. I am a long-time user of Firefox, but recently I have encountered a series of bugs.

1. Initially, I couldn't access GitHub. On the same computer, Edge works fine, but Firefox fails to load the page. Sometimes, the page content loads in Firefox, but the layout is completely messed up, leading me to suspect that CSS files are not loading.

2. I uninstalled Firefox, deleted the profile, and performed a complete reinstallation. This time, I couldn’t even open the Firefox account login page, receiving the error `SSL_ERROR_BAD_MAC_READ`.

3. Following online advice, I set `security.tls.version.max` to 3, but the issue persisted. The error changed to `SSL_ERROR_RX_MALFORMED_SERVER_HELLO`. When checking the certificate, the common name was `n.sni-347-default.ssl.fastly.net`.

4. Suspecting an issue with the system or browser certificates, I deleted all self-signed certificates and self-signed CAs (such as Fiddler and Accesser) from the system, but I still cannot access the site.

Please tell me, how should I go about solving this problem?

您好，感谢您在繁忙之中拨冗阅读我的求助。

我是Firefox的老用户，但最近发生了一系列的bug。 1. 最初是github无法访问。在同一台电脑上，用Edge可正常访问，但Firefox无法访问。Firefox有时页面内容可正常加载，但布局全乱，怀疑是CSS文件未加载。 2. 我卸载Firefox，删除配置文件，完全重装。这次连火狐账号登陆页面都无法打开，提示SSL_ERROR_BAD_MAC_READ。 3. 我按照网上的提示，设置`security.tls.version.max`为3，仍然无法加载，报错变为`SSL_ERROR_RX_MALFORMED_SERVER_HELLO`。查看证书，通用名称为`n.sni-347-default.ssl.fastly.net`。 4. 怀疑系统或者浏览器证书有问题，删除了系统内所有自签名证书与自签名CA（fiddler, Accesser）但仍然无法访。

请问我该如何解决这个问题呢？

I have been using my email for years and suddenly today this message came up and I cannot access my email because an error message came up. i accessed earlier today and then this message. I use my provider as my home page and it has never been an issue before. The only thing I have changed is I downloaded a codec update. I can still receive emails from this address on my phone. I can still access all the sites I visit except my webmail.This is the full message: An error occurred during a connection to webmail.westnet.com.au. Peer’s Certificate has been revoked.

Error code: SEC_ERROR_REVOKED_CERTIFICATE

Hi, Since three or four months, whenever I log into Outlook live, either on Mac or Windows PC, I get a security warning saying that the information will not be secure (Please see attachment.) When I log into the same account, from Edge for example, I do not get the warning popup. I really enjoy using Firefox and would love to continue but this case is worrying me a bit. Any idea to help? Thank you very much, Mathieu B.

I am trying to backup a certificate using certificate manager but I keep getting the error “Failed to create PKCS #12 backup file for unknown reasons” I have tried everything to get this to work

I am new to firefox customization. I need help to understand, how firefox picks up CA certificates from the global ca-certificates path in ubuntu and uses them in their own cert9.db

Currently, what I am trying is, If I have a rootCA certificate (which I generated using openssl), I want to keep it in a specific path, such that when firefox launches, it picks up that certificate and uses it. How can i achieve it.

I have tried using the policies.json, which works. But are there any other ways to achieve it?

I am in Denmark and would like to get access to https://sede.mir.gob.es/opencms/export/sites/default/es/inicio/ when I press Access throug digital signature, It says secure connection failed. To be able to access spanish government sites with my spanish digital signature how to get firefox to approve it? I was tried to add the websites and approved but didn't work. The certificat is installed correctly and tested when I was in Spain. Thank you for your support.

My bank says it is your problem. This website will open using Google but not Firefox. I am wondering if somewhere in your last "update" there was a change which clashes with my bank's security settings (or whatever). When I try to open the website (Chase.com), the screen shows a solid blue screen and a twirling circle which usually precedes the opening to my account page. It twirls FOREVER! It never opens! It makes no sense to me whatever. HELP!!

Dear all, can you please help? I am trying to login to my bank First Direct. When clicking on First Direct bookmark I receive a error message.

Secure Connection Failed

An error occurred during a connection to www.firstdirect.com. SSL received a record that exceeded the maximum permissible length.

Error code: SSL_ERROR_RX_RECORD_TOO_LONG

Will someone help me get over this? My contact email [edited email and phone# from community support forum] & on WhatsApp. Thanks Albert

'I was sent a link that goes to a learning site by my future employer to take some online classes via email. Every time I try to access the site I get a message that I need to close the page as the website may be impersonating someone trying to steal my information. I use Safari, not that I have a clue what it means, is this a restriction issue I need to avoid or sidestep like a firewall or something similar? I tried typing the web address and the HR office says not to do that - to only use the link. How can I check what’s wrong so that I can take access the online classes for this position?

All of a sudden I am getting loads of SPAM emails and when I try to unsubscribe, I get a Secure Connection Failed error. I have marked them as SPAM but they just keep coming, daily.

I have a router set up at a remote site with a device that has a built in web server that allows viewing the items displayed. The router quit working so i replaced it with another one with the same configuration but now when I try to access through it The browser is complaining that it is unsecure and apparently resets the connection. I don't care if it is unsecure it is my site/router and I want to connect. I have used this configuration many times with no problems but firefox has done something to prevent it from working anymore, this started being a problem with some of these setups a couple years ago. How do I get it to connect anyway.

So I'm trying to access Greenfly but I'm getting this error message: SEC_ERROR_REVOKED_CERTIFICATE.

Please see attached image as all checks are good for the credentials. I've tried erasing cookies but no luck.

Any other options?

Firefox Nightly | 138.0a1 (2025-03-10) (aarch64) MacBook Pro | M2 2022 | Sequoia 15.3.1

My cloud account is nearly full but when I go to update the account or purchase more space I am blocked. The authenticity of going from Mozilla Firefox to cloud is blocked because it cannot confirm it identity. I at the point of not being able to use my computor due to being blocked. Can anuone tell me how to get through?????

itu adalah contoh dari web yang saya mau buka ternyata error. Ngga hanya sekali, beberapa website pemerintah lokal yang mau saya buka terkadang memperingati bahwa websitenya tidak aman (Not Secured).

Apa karna Laptopnya bukan produk lokal? laptop saya ini dari Singapure dan pengaturan awalnya tidak bisa diganti, jadi tidak bisa dibuka website2 lokalnya? karna mendeteksi dan kebacanya IP laptop saya asing?

One morning could not connect to email/ATT. This is the error message I got: Something's gone wrong We may be having trouble with your connection. Connecting your device to Wi-Fi could help fix the issue or try again later. If you were using an app, close this page. Otherwise, start over. ATT came to home to look into hookup, etc. Could not fix. They advised Firefox could be corrupted. Should I reinstall Firefox. Had to go thru Chrome for email. Have Windows 11. Thank you.