I have updated my version of Firefox to 4.0b.6 and can't use the MyPoints toolbar. The previous version supported that add-on.
thanks for your help.
The regular Firefox 3.6.x version should still be installed on your computer.
You can check that on your hard drive or in Start > All Programs.
However you shouldn't use the 4.0 beta versions with your regular Firefox 3.6 profile, but create a new profile exclusively for that beta version.
Thanks a lot cor-el. I reinstalled 3. 06 and the problem was solved.