Change User-interface Language

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Joined: August 14th, 2010, 4:38 am
Location: Denmark

Post Posted February 21st, 2012, 9:08 am

I got a danish version of Thunderbird

Sometimes when I need help - for instance from this forum - it is not optimal that the User interface is in danish cause I do not know the similar terms in english
How can i change the user-interface to english???


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Post Posted February 21st, 2012, 10:24 am

If you use TB 10.0.2 download (right-click -> Save link as...) the language pack "en-US.xpi" or "en-GB.xpi" here : ... win32/xpi/
and install it as an extension.
To change the UI you'd have to open the config editor (about:config) and change the entry
general.useragent.locale to en-US or en-GB and restart TB (and vice versa).
Much easier (my preferred method) for switching from one language to the other: install the add-on Quick Locale Switcher.
Remember: before each TB update, even a minor like from 10.0.1 to 10.0.2, you'll have to uninstall the actual English language pack and after the update install the language pack for the new version.

Posts: 13
Joined: August 14th, 2010, 4:38 am
Location: Denmark

Post Posted February 21st, 2012, 2:02 pm

Thanks a lot, that was easy - Brilliant (magnifique)
I was not sure about the Link - - but It seems to be safe (but i would have liked a little explanation about what it is...)


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Location: Made in Canada

Post Posted February 21st, 2012, 2:09 pm is a single mirror of a number of mirrors used to host stuff for Mozilla.

The proper link would have been is for the GNOME project which is a desktop environment for Linux so it should be safe.
(* is not Mozilla!)
The Complaint Department at Mozilla (current complaints) (<It is not a real complaint site but for jokes/testing of bugzilla).
The Complaint department link is borked until unknown time.


Post Posted April 24th, 2012, 4:40 am

Hello, good answer - helped me ;)
I wanted to add that my Firefox was old (3.5) and refused to install the XPI of current (11-version) for ThunderBird, and I failed to find a menu item in (localized) TB to open either the link or the downloaded file. The Addons menu item goes straight to open the Mozilla site with addons, but English-US program localization is not among downloadable options.
However, in TB-11 settings there is an option to open a tab with a starting "homepage". I added the URL to the localization XPI and checked the mark to open the homepage upon startup, restarted TB - and voila! I was offered to install the addon, restart TB once again, and I have English interface now (having changed the general.useragent.locale value; the interface for that, equivalent to about:config in the browser, is available through Tools/Options menu, Advanced/General tab, Config Editor button). Just a few clicks away ;)

Hope this helps others too,
//Jim Klimov

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