can't sign in by toolbar or website while running firefox

I signed up on the website, got confirm email, downloaded toobar & installed in firefox. Toolbar and then website says my username & p/w were invalid. Reinstalled toobar: same result. Signed up with different username and p/w: same result. Not too dang good, would you say?
 
sad I’m utterly frustrated and ticked off about this lame, low budget "support" facility
Inappropriate?
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