Comment 55 for bug 10910

As a crude workaround, could the install script put a value derived from the system locale into the global prefs.js file when you install Firefox on Ubuntu? (Not sure what it's called; in LXR it's http://mxr.mozilla.org/mozilla-central/source/modules/libpref/src/init/all.js#2513 but there may be other places too.)