After I had the Russian content pack installed, the menu system got corrupt - Privacy & Security sub-tree has become invisible, RMB clicking on links showed no context menus. Switching back to English(US) did not solve the problem. I had to delete Mozilla and reinstall to get the missing menus back. The user profiles, however, were not affected. Note: this content pack is not listed in Mozilla, but I had downloaded it from mozilla.org. This bug has no relation to the Norwegian/no content pack
Please contact the Russian localization team <URL: http://www.mozilla.ru/ > for any questions regarding the Russian localization. Closing as 'invalid'.
This bug has reappeared w/o any localized content pack. Usually occurs after Mozilla crashes and/or is terminated by an external process (such as Top or WatchCat). Solution is the same - reinstall Mozilla.
If this happens again, try deleting component.reg in the bin directory and *.rdf in the chrome directory. There is not much we can do with this problem as it is not recreatable.
solution noted in bug - when you get chrome corruption, delete *.rdf in the chrome directory.