>>953
出てましたんでコピペします

1557104057771 addons.xpi
ERROR failed to add new intermediate certificate::
[Exception... "Component returned failure code: 0x805a1fe8 [nsIX509CertDB.addCertFromBase64]"
nsresult: "0x805a1fe8 (<unknown>)" location: "JS frame :: resource://gre/modules/addons/XPIProvider.jsm ::
addMissingIntermediateCertificate :: line 1896" data: no] Stack trace:
addMissingIntermediateCertificate()@resource://gre/modules/addons/XPIProvider.jsm:1896
startup()
@resource://gre/modules/addons/XPIProvider.jsm:2144
callProvider()
@resource://gre/modules/AddonManager.jsm:203
_startProvider()
@resource://gre/modules/AddonManager.jsm:652
startup()
@resource://gre/modules/AddonManager.jsm:805
startup()
@resource://gre/modules/AddonManager.jsm:2775
observe()
@jar:file:///usr/lib64/firefox/omni.ja!/components/addonManager.js:66 Log.jsm:679


CentOSはサブ環境でちゃんと勉強してないので、Firefoxのインストールがそもそも正しくないかもしれません
今までは何の問題もなく使えてましたが……