We are trying to update to 3.6.8 and note says cannot find license agreement for this version.
tried to do a complete update for 3.6.8 but get a notice saying that the license file for this version could not be found Please visit Firefox homepage for more information.
Opaite Mbohovái (1)
Do a clean reinstall and download a fresh Firefox copy from http://www.mozilla.com/firefox/all.html and save the file to the desktop.
Uninstall your current Firefox version and remove the Firefox program folder before installing that copy of the Firefox installer.
It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.
You can skip the step to create a new profile, that is not necessary for this issue.
See http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Clean_reinstall