From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; Linux i686; U;) Gecko/20040510
Description of problem:
Mozilla's menu on FC3 test1 is not Japanese in Japanese enveronment.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.I installed FC3 test1 on Japanese.
2.Start up Mozilla
Actual Results: Mozilla's menu is English.
Expected Results: Mozilla's menu should be Japanese on Japasene
Mozilla on FC2 is also English menu only...
I correct summry.
This is mostly an upstream problems, see also other bugs about this.
Please check above urls.
There are Japanese localization builds.
*** This bug has been marked as a duplicate of 137134 ***