Mein Firefox unter ArcoLinux tuts auch nicht. Aber ich habe folgenden Kommentar im Web gefunden, was ich auch vermute:
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Also fail with Firefox: https://support.microsoft.com
In Edge it does not fail. It must be Microsoft that wants us to leave FF and move to Edge. XDD
yeah probably. They hate FOSS, so they broke their site
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Passen täts...