Per-site Preferred Language
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Include "preferred language" in Site Settings.
Some sites automatically choose the display language depending on the information (the Accept-Language value) the browser sends to them:
https://forum.vivaldi.net/topic/27441/language-and-user-agent-string
There is a global setting of the preferred languages, but you sometimes want a per-site setting to counteract the annoying automatic choice of the languages you don't want.
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