$ ebuild firefox-66.0.2.ebuild prepare Appending /home/jer/git/gentoo to PORTDIR_OVERLAY... * firefox-66.0.2-en-GB.xpi BLAKE2B SHA512 size ;-) ... [ ok ] * firefox-66.0.2-nl.xpi BLAKE2B SHA512 size ;-) ... [ ok ] >>> Downloading 'https://archive.mozilla.org/pub/firefox/releases/66.0.2/source/firefox-66.0.2.source.tar.xz' --2019-03-29 12:21:01-- https://archive.mozilla.org/pub/firefox/releases/66.0.2/source/firefox-66.0.2.source.tar.xz Resolving archive.mozilla.org (archive.mozilla.org)... 52.85.253.100 Connecting to archive.mozilla.org (archive.mozilla.org)|52.85.253.100|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 280704196 (268M) [application/x-tar] Saving to: ‘/aches/gentoo/distfiles/firefox-66.0.2.source.tar.xz’ /aches/gentoo/distfiles/firefox-66.0.2. 100%[==============================================================================>] 267.70M 2.68MB/s in 1m 54s 2019-03-29 12:22:56 (2.34 MB/s) - ‘/aches/gentoo/distfiles/firefox-66.0.2.source.tar.xz’ saved [280704196/280704196] !!! Fetched file: firefox-66.0.2.source.tar.xz VERIFY FAILED! !!! Reason: Failed on BLAKE2B verification !!! Got: 5e7960b3d759a204e479df932b304df0bd1f4ed95f06d822716c36fa7cbe7ae315042717adc77fea7f91af6c3947848e56e19d8e16cd1ee31ec67df3cf6b517e !!! Expected: 23a8d0495d903ed99d460b06445f7c9e2872b6dc19f9ad28d6aeb42d7fe45b69ec006d8303534069a3ead52a9c0cadf30d16f492270c8117284a199b632498a9 Refetching... File renamed to '/aches/gentoo/distfiles/firefox-66.0.2.source.tar.xz._checksum_failure_.6nx6i4sc' !!! Couldn't download 'firefox-66.0.2.source.tar.xz'. Aborting.
anarchy@bull firefox $ ebuild firefox-66.0.2.ebuild fetch >>> Downloading 'http://distfiles.gentoo.org/distfiles/firefox-66.0.2.source.tar.xz' --2019-03-31 13:09:38-- http://distfiles.gentoo.org/distfiles/firefox-66.0.2.source.tar.xz Resolving distfiles.gentoo.org... 2600:3404:200:237::2, 2600:3402:200:227::2, 2605:bc80:3010::134, ... Connecting to distfiles.gentoo.org|2600:3404:200:237::2|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 280704196 (268M) [application/x-xz] Saving to: '/usr/portage/distfiles/firefox-66.0.2.source.tar.xz' /usr/portage/distfi 100%[===================>] 267.70M 3.84MB/s in 87s 2019-03-31 13:11:06 (3.06 MB/s) - '/usr/portage/distfiles/firefox-66.0.2.source.tar.xz' saved [280704196/280704196] * firefox-66.0.2.source.tar.xz BLAKE2B SHA512 size ;-) ... [ ok ] >>> Downloading 'http://distfiles.gentoo.org/distfiles/firefox-66.0-patches-09.tar.xz' --2019-03-31 13:11:07-- http://distfiles.gentoo.org/distfiles/firefox-66.0-patches-09.tar.xz Resolving distfiles.gentoo.org... 2600:3404:200:237::2, 2600:3402:200:227::2, 2605:bc80:3010::134, ... Connecting to distfiles.gentoo.org|2600:3404:200:237::2|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 149336 (146K) [application/x-xz] Saving to: '/usr/portage/distfiles/firefox-66.0-patches-09.tar.xz' /usr/portage/distfi 100%[===================>] 145.84K 49.9KB/s in 2.9s 2019-03-31 13:11:11 (49.9 KB/s) - '/usr/portage/distfiles/firefox-66.0-patches-09.tar.xz' saved [149336/149336] * firefox-66.0-patches-09.tar.xz BLAKE2B SHA512 size ;-) ... [ ok ] I have tried even with upstream mirrors and been unable to reproduce.