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Is there a Chrome Extension which can be used to quickly switch between two locales (e.g. English and German) quickly? Some websites detect the user's language using the Accept-Languages HTTP-header while not having any UI to configure the desired language. In that case the only way I know of to change the language is to change the mentioned HTTP-header.

Actually, any quick way to switch locales will do. It does not have to be an extension.

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Bookmark chrome://chrome/settings/languages and then you just need to Drag and Drop the language to make it default. – Ankit Mishra Sep 23 '12 at 13:07
@Serge thanks. I have tested this but without luck. I guess the website decides to always choose priority 1. Makes sense. – usr Sep 23 '12 at 15:12
up vote 42 down vote accepted

Commenter Lamb suggests the following:

Bookmark chrome://settings/languages and then you just need to Drag and Drop the language to make it default.

I think this is a workable solution.

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note: you have to then click on the 'Display Google Chrome in this Language' button and completely restart Chrome. I found certain extensions were still running in the background and I needed to go to Task Manager to kill all Chrome processes. You can test the date format with this fiddle (switch between US and UK English) – Simon Feb 17 '15 at 23:06
you can completely shut down Chrome using "menu > Exit" button. Closing the browser with the X button doesn't kill the background extensions – Dénes Papp Mar 1 '15 at 15:25

I have written a Chrome extension which does exactly that: Quick Language Switcher.

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Can your extension add languages that Chrome itself doesn't directly support? I'm looking for a way to easily add in locally defined language codes for localisation tests (testing the process of localisation itself, not localisation to a given language). – Martijn Pieters Jan 16 '15 at 16:42
you can add new languages to this extension – Simon Feb 17 '15 at 23:10

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