# Firefox certificate problem, relating to HSTS

**URL:** https://forum.yunohost.org/t/firefox-certificate-problem-relating-to-hsts/1670
**Category:** Support
**Tags:** english
**Created:** [June 18, 2016, 7:40pm UTC](https://forum.yunohost.org/t/firefox-certificate-problem-relating-to-hsts/1670 "2016-06-18T19:40:09Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![malmsey](https://forum.yunohost.org/letter_avatar_proxy/v4/letter/m/9dc877/32.png) [@malmsey](https://forum.yunohost.org/u/malmsey)
#### Post date: [June 19, 2016, 10:53pm UTC](https://forum.yunohost.org/t/firefox-certificate-problem-relating-to-hsts/1670/3 "2016-06-19T22:53:06Z")

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Thanks for the reply. The auto install script for letsencrypt did not work for me so I dove in to the thread for manual installation: [How to: Install Let’s Encrypt certificates](https://forum.yunohost.org/t/how-to-install-let-s-encrypt-certificates/1075/79)

It didn’t work the first time so I re-imaged my server and started over, only now I get a

`"fatal: repository 'https://github.com/letsencrypt/' not found"`

when I try to clone the repo. ☹ I tried the same command from a local virtual machine with a clean debian install and I got the same thing… An SSL certificate issue with the repo perhaps? How ironic. I guess I’ll have to try again later. There’s always something!

edit: I’m real dumb and didn’t enter the full URL. Shame on me

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