¡Hola Dragana! I believe this bug or a very similar one bite me again today while I was trying to load https://blog.mozilla.org/sumo/2021/04/09/whats-up-with-sumo-q1-2021/ earlier on a fully updated Nightly built from https://hg.mozilla.org/mozilla-central/rev/0ea49daf534fcd9a49708717b3864a4ebc73c20d. about:networking#dnslookuptool would give NS_ERROR_UNKNOWN_HOST bot both blog.mozilla.org and mozilla.org at the time. Here's the log https://we.tl/t-BSXnsJ2ZtS The bug went away on the 7th or 8th reload. Hope this is useful. ¡Gracias! Alex
Bug 1698321 Comment 28 Edit History
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¡Hola Dragana! I believe this bug or a very similar one bite me again today while I was trying to load https://blog.mozilla.org/sumo/2021/04/09/whats-up-with-sumo-q1-2021/ earlier on a fully updated Nightly built from https://hg.mozilla.org/mozilla-central/rev/0ea49daf534fcd9a49708717b3864a4ebc73c20d. about:networking#dnslookuptool would give NS_ERROR_UNKNOWN_HOST for both blog.mozilla.org and mozilla.org at the time. Here's the log https://we.tl/t-BSXnsJ2ZtS The bug went away on the 7th or 8th reload. Hope this is useful. ¡Gracias! Alex