Ajax Error when using Drupal with Firefox

Submitted by max on Sat, 02/21/2009 - 01:38

Importing interface translations

Error importing interface translations
Please continue to the error page
An HTTP error 404 occurred. /batch?id=10&op=do

This happens when I try to add a language. There is no problem if I try it with Internet Explorer. I am using Drupal 6.9 and Firefox 3.0.6.

Any idea?