It works for me and looks good on SSL Labs.

Does it still happen in a new profile? An easy way to test a new profile is to install Developer Edition and see if it happens there or refresh your existing profile.

It works for me and looks good on SSL Labs. Does it still happen in a new profile? An easy way to test a new profile is to install Developer Edition and see if it happens there or refresh your existing profile.

Thanks for replying, I tried all the things you mentioned but it still didn't work sadly.

The firefox developer edition was freshly installed but it still shows the same error. The new profile and refreshing my profile also didn't work as well as incognito tab.

Hi

Can you use this app?:

https://octoart.vercel.app/

Hi Can you use this app?: https://octoart.vercel.app/

Sadly no, it's the same result. You can see the result on the attached screenshot.

Additional info:

1. I clicked "Advanced..." button and it showed me some certification error. Please take a look at the screenshot given.
2. I tried to disable HSTS by accessing about:config and setting network.stricttransportsecurity.preloadlist to false. Then, I access several .vercel.app sites with incognito mode and I found out that all .vercel.app is being blocked by internetpositif.id for some reason.

I don't understand why it's being disabled only on Mozilla Firefox. What I understand is, if it's actually being blocked by Indonesia government then I shouldn't be able to access .vercel.app sites through all browsers.

That site opens fine for me.

If access is being restricted by a government body, there is not much we can do to assist.

Try to set this pref:

• about:config => security.enterprise_roots.enabled = true

• https://support.mozilla.org/en-US/kb/setting-certificate-authorities-firefox

That site opens fine for me. If access is being restricted by a government body, there is not much we can do to assist.

I see, thank you for your help

Try to set this pref:

• about:config => security.enterprise_roots.enabled = true

• https://support.mozilla.org/en-US/kb/setting-certificate-authorities-firefox

I tried setting it to true and access the sites through incognito mode. Still the same result though.

You can check the connection settings.

• Settings -> General -> Network: Connection -> Settings

If you do not need to use a proxy to connect to internet, select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly.

See "Firefox connection settings":

• https://support.mozilla.org/en-US/kb/websites-dont-load-troubleshoot-and-fix-errors
• https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can
• https://support.mozilla.org/en-US/kb/firefox-and-other-browsers-cant-load-websites

You can check the connection settings.

• Settings -> General -> Network: Connection -> Settings

If you do not need to use a proxy to connect to internet, select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly. See "Firefox connection settings":

• https://support.mozilla.org/en-US/kb/websites-dont-load-troubleshoot-and-fix-errors
• https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can
• https://support.mozilla.org/en-US/kb/firefox-and-other-browsers-cant-load-websites

Hello, thanks for replying

Setting the proxy to "No Proxy" doesn't seem to fix the issue.

But I managed to fix it by setting the DNS manually using cloudflare.

Thank you for your help