Firefox is the web browser that was born out of the Mozilla Product Localisation project. It is now their default target and is renowned for its security.
This page contains Firefox-specific localisation notes and issues. You should read this in conjunction with the Mozilla Product Localisation pages as there are some things shared between Firefox and Thunderbird localisation.
These are configurations not customisations. These are things that you must change. Remember that you need to go through a formal procedure of review to commit changes to some of these files in the Mozilla repository, especially a file like browser/chrome/browser-region/region.properties. This usually means you need to file a bug, ask for review by setting flags and more things and put people in CC. Ask at Mozilla for the newest rules.
install.rdf. Its added to %s Langauge Pack
install.rdf‘s creator tag
MOZ_LANGPACK_CONTRIBUTORSline and make changes as needed.
xx-YY(language-COUNTRY) leave out country if you don’t need that for your language
You can change various settings to make the browser more specific to your locale. Be aware that some changes are not allowed in official Mozilla Foundation builds.
This extract of an e-mail from Pavel Franc of the Czech team highlights other pieces of Firefox that need to be localised:
The Czech (cs-CZ) Thunderbird 1.0 windows builds are ready. We do now our QA testing. ftp://ftp.czilla.cz/test/thunderbird/1.0/ The following files outside chrome were changed in zip archive: * * README.txt ... translated * * talkback-l10n.ini ... translated * + cs.aff ... Czech spellchecker * + cs.dic ... Czech spellchecker * - en-US.aff ... removed * - en-US.dic ... removed * * rss.rdf ... translated * * mailViews.dat ... translated * * all-thuderbird.js ... changed useragent.locale and in installer: * * install.js ... changed locale and translated shortcuts * * UninstallThunderbird.zip ... translated * * 7zSD.sfx ... translated by ResourceHacker