Quick locale switcher firefox extension is useful to toggle between various locales.
Translating static HTML resources
Stand-alone HTML files are often used in Hudson for things like inline help messages. These resources need to be translated by adding the locale code between the file name and the extension. For example, the Japanese version of
abc.html would be
abc.ja.html, and British version of it could be
abc.en_GB.html. These files need to be encoded in UTF-8.
Once you made some changes, you can commit them. Translators should consider themselves as owning property files for their locale, so feel free to go ahead and just commit. If you are new to this, doing a small commit first is a good idea. You can also always send in a patch if you prefer to be safe.