the TOOLS menu & HELP menu are missing (not the whole bar)
the TOOLS menu & HELP menu are missing (not the whole tool bar, but only these two menus), I can see File, Edit, View, History, Bookmarks but not Tools and Help (on Firefox 3.6 on windows XP)
Opaite Mbohovái (1)
I suspect that you installed an extension that hides some menu items thru user settable preferences.
Do you have that problem when running in the Firefox SafeMode?
http://support.mozilla.com/en-US/kb/Safe+Mode
Don't select anything right now, just use "Continue in SafeMode."
If not, see this:
http://support.mozilla.com/en-US/kb/troubleshooting+extensions+and+theme...