We're sorry to hear that the page doesn't work as expected. In order to look for the root cause, please follow the steps below and provide us with more information to troubleshoot your issue.

Information to provide

• Do you enable Enhanced Tracking Protection (ETP) feature? You can check if ETP is enabled through the shield icon on the URL bar.
• What kind of ETP setting you have? To find out, go to about:preferences#privacy and let us know if you set it to Standard/Strict/Custom.

Check if the issue is caused by ETP

• Ensure that ETP is enabled for the site and the issue occur when ETP is enabled.
• Try disabling ETP and see if the problem persists. If the problem disappears after disabling ETP, then go to the next steps. Otherwise, it's not an ETP-related issue.

Check if the issue is caused by Total Cookie Protection (TCP)

WARNING from the moderator team: Changing Firefox pref from the about:config page can sometimes break Firefox or cause strange behavior. You should only do this if you know what you're doing. Please read Firefox advanced customization and configuration options to learn more.

• Go to about:config and check if the pref “network.cookie.cookieBehavior” is set at 5, which means that TCP is enabled together with ETP. If the pref value is not 5, then the issue is not TCP-related.
• Set the pref “network.cookie.cookieBehavior” to 4 and check if the issue still exists. If the issue disappears, then it is a TCP breakage. In that case, you can file a report through Bugzilla or reach out the #anti-tracking team on Matrix.

Check if the breakage is a webcompat issue

• If your issue is not related to ETP or TCP, proceed to test the page on other browser.
• If the problem persists in other browser, then it's a general website breakage issue. In this case, you may want to reach out to the website administrator to let them know about the issue.
• If the page works as expected in other browser, report the issue to Webcompat.

Hi, Unfortunatelly after following all the instructions that you provided - the problem was not solved. After some frustration I decided to consult AI - problem was SOLVED! Here are the Instructions from AI so other User can follow them: To manually add the Royal Bank of Canada (RBC) root certificate to Mozilla Firefox's Certificate Manager, you can use the Entrust Root Certification Authority – G2 certificate. RBC utilizes Entrust as its Certificate Authority (CA), and this root certificate is commonly used for their SSL/TLS certificates.

🔐 Step 1: Download the Entrust Root Certificate Visit the Entrust Root Certificate Downloads page:

Go to Entrust Root Certificate Downloads.

Download the Entrust Root Certification Authority – G2 certificate:

Locate the Entrust Root Certification Authority – G2 entry.

Click on the Download link next to it to obtain the .crt file.

🧰 Step 2: Import the Certificate into Firefox Open Firefox Options:

Click the menu button (three horizontal lines) in the top-right corner.

Select Settings.

Access the Certificate Manager:

In the Settings window, scroll down and click on Privacy & Security.

Scroll to the Certificates section.

Click on View Certificates.

Import the Certificate:

In the Certificate Manager, go to the Authorities tab.

Click Import.

Navigate to the location where you saved the Entrust Root Certification Authority – G2 certificate.

Select the certificate and click Open.

Trust the Certificate:

In the dialog that appears, ensure the following options are checked:

Trust this CA to identify websites

Click OK to confirm.

🔄 Step 3: Restart Firefox Close and reopen Firefox to ensure the new certificate is recognized and applied.

⚠️ Troubleshooting Tips Ensure TLS 1.2 is Enabled: RBC requires TLS 1.2 for secure connections. Ensure it's enabled in Firefox.

Type about:config in the address bar.

Search for security.tls.version.min.

Ensure its value is set to 3 (which corresponds to TLS 1.2).

Update Firefox: Ensure you're using the latest version of Firefox to avoid compatibility issues.

Check for Interfering Extensions: Some browser extensions can interfere with secure connections. Try disabling them temporarily to see if the issue persists.

Thanks for your support Amparo

Hello,

I am glad to hear that your problem has been resolved. If you haven't already, please select the answer that solves the problem. This will help other users with similar problems find the solution.

Thank you for contacting Mozilla Support.