Every once in a while, Firefox shows me error messages (like Page Not Found) in German. I don't know why. I happen to be able to read and understand German, but what could that have to do with it? This time, Google is doing it to me:

The only reason Google shows me as signed in, is because I signed into YouTube. Yet my YouTube pages are still in English.
I bet it is related to one of my plug-ins. But why would it happen so intermittently?

The only reason Google shows me as signed in, is because I signed into YouTube. Yet my YouTube pages are still in English.
I bet it is related to one of my plug-ins. But why would it happen so intermittently?
Ich verstehe nur Bahnhof
Date: 2016-05-10 07:22 am (UTC)From:So I uh, googled, and found this: https://support.google.com/websearch/answer/3333234?hl=en
It's not an answer to why Google is spricht Deutsch to you but at least will hopefully let you change all their services back to English (or ensure they already are in English and stay that way).
If you installed a computer OS with German set as the default, that could be an issue: https://www.quora.com/Why-does-google-display-the-wrong-language-for-me-over-and-over-again
Some causes and answers are listed here (basically, English-speaking Google users who don't live in US territory are having problems so most of it does not apply to your situation but at least gives one an idea of show-English-only fixes that are working vs. fixes that are not): https://productforums.google.com/forum/#!msg/websearch/cVE52060AOg/mVIjVvKG2OgJ
Why would it be related to one of your add-ons? Which one?
Re: Ich verstehe nur Bahnhof
From:Re: Ich verstehe nur Bahnhof
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From:no subject
Date: 2016-05-09 11:30 pm (UTC)From: