# Firefox experiences Network Protocol Violation on Discourse based Websites

**URL:** https://meta.discourse.org/t/firefox-experiences-network-protocol-violation-on-discourse-based-websites/97308
**Category:** Support
**Created:** [September 16, 2018, 9:23pm UTC](https://meta.discourse.org/t/firefox-experiences-network-protocol-violation-on-discourse-based-websites/97308 "2018-09-16T21:23:30Z")
**Posts on this page:** 1
**Showing post:** 55

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### Author: ![RGJ](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/rgj/32/523185_2.png) [@RGJ](https://meta.discourse.org/u/RGJ)
#### Post date: [October 24, 2018, 8:31pm UTC](https://meta.discourse.org/t/firefox-experiences-network-protocol-violation-on-discourse-based-websites/97308/55 "2018-10-24T20:31:37Z")

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Weird, because when I try to open this in Firefox I just get a certificate error, like is to be expected.  
To be honest, I do not have the feeling that this is a repro of the actual issue. This is just a certificate issue.

Also, I have seen the “Network Protocol Violation” on sites that did not have HSTS, nor certificate problems.

 ![image](https://global.discourse-cdn.com/meta/original/3X/5/5/557290c661586aa39e726aa02e864f6d336f82c0.png)

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