Legacy Firefox HTTPS Localhost Troubleshooting for AIQ

WorkingLast reviewed: September 30, 2026

This page is retained as a legacy reference for older Firefox HTTPS localhost issues in AIQ environments.

What changed in this article

• Shortened the long question-style title and marked the Firefox/Designer localhost workflow as legacy.
• Replaced Designer wording with AppvanceAIQ IQterminology while noting that old Firefox certificate/profile behavior may no longer match current browser versions.
• Added checks for trusted certificate, localhost URL, port 8443, browser version, proxy settings, and whether the issue still reproduces in supported browsers.

Validation workflow

1. Confirm the current supported browser path before troubleshooting an older Firefox localhost issue.
2. Verify certificate trust, URL/port, proxy settings, and whether the AIQ service is reachable on https (>https://localhost:8443) in Firefox browser and having issues with designer?

   Designer launches and downloads “start-proxy” every time when user navigates to designer and gets stuck in between and does not move forward and also does not get proxy started pop-up.

   Firefox Settings:

   Note: Please make surelocalhost.

3. If the proxyissue is runningFirefox-specific, (2 Java process should be running)

   

   If you are seeing the above, Please click Add Exceptions and it will add the certificates for you.

   Navigating to Designer from the start screen and the proxy download file still comes up even when the proxy is still running?

   We need to add the Exceptions as shown in the below screenshot.

   Go to Firefox settings > Advanced > Certificates tab > Click View certificates.

   

    Go to Servers tab > Add Exceptions

   

    In the locations text box, type https://localhost:8443 as seen in the below screenshot, click Get Certificate and then click 'Confirm security exception'

   

   Repeat the same step above and add the URL - >https://localhost:9443 and Confirm security Exception.

   and also this URL as well: >http://localhost:9999/_s_/dyn/pro/DBReports

   Restartdocument the browser after the settingsversion and thencompare navigatewith toa Designer.

   supported Chrome/Edge execution path.

ProxyReview Startednote: pop-upThis page should not be displayed.used as primary setup guidance for current AIQ browser testing.