We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

My self-signed *.local.dev wildcard SSL no longer works in v101.0

  • 3 iimpendulo
  • 1 inayo le ngxaki
  • 1 view
  • Impendulo yokugqibela ngu Chad Reitsma

more options

After upgrading to v101, Firefox no longer recognizes my Self-signed wildcard SSL for *.local.dev.

Before you tell me not to use the .dev domain, I am aware that Google owns it and we're technically not supposed to do local development with the *.local.dev domain.

I have already tried the following: 1. Set network.stricttransportsecurity.preloadlist to FALSE, and everything was working perfectly fine before v101 2. imported the server.crt into Trusted Root Authorities in Windows, and also imported it in the Certificate manager in Firefox. 3. Tried other wildcard local domains like *.test.site, *.local.ddev and these don't work either.

I even tried following recent guides to issue a new certificate with openssl and SAN, and it still doesn't work.

Screenshot of wildcard SSL attached.

After upgrading to v101, Firefox no longer recognizes my Self-signed wildcard SSL for *.local.dev. Before you tell me not to use the .dev domain, I am aware that Google owns it and we're ''technically'' not supposed to do local development with the *.local.dev domain. I have already tried the following: 1. Set network.stricttransportsecurity.preloadlist to '''FALSE''', and everything was working perfectly fine before v101 2. imported the server.crt into Trusted Root Authorities in Windows, and also imported it in the Certificate manager in Firefox. 3. Tried other wildcard local domains like *.test.site, *.local.ddev and these don't work either. I even tried following recent guides to issue a new certificate with openssl and SAN, and it still doesn't work. Screenshot of wildcard SSL attached.
Iqhotyoshelwe imifanekiso ekwisikrini

Isisombulu esikhethiweyo

Found this guide *Works! https://betterprogramming.pub/trusted-self-signed-certificate-and-local-domains-for-testing-7c6e6e3f9548

Funda le mpendulo kwimeko leyo 👍 0

All Replies (3)

more options
more options

Thanks cor-el! That explains it. I will check the release notes next time.

I did try issuing a certificate with the correct SAN, but it's possible I made a mistake. I'll keep trying and report any findings back here.

more options

Isisombululo esiKhethiweyo

Found this guide *Works! https://betterprogramming.pub/trusted-self-signed-certificate-and-local-domains-for-testing-7c6e6e3f9548

Ilungisiwe ngu Chad Reitsma