Some non-English websites show a dumbed-down/outdated English version to all visitors whose browsers identifies them as English readers. I usually browse in English but I can read more languages, so I would like to have an easy way to say "Consider me as a Japanese person" for instance.
- Sets the
ACCEPT_LANGUAGEHTTP header to the language of my choice, in all requests sent within that tab.
- Does not change the Firefox menus/etc. Only the content of the web page should use the language, not Firefox itself.
- No need to download "language packs".
- Free, ideally open source.