The dollar extended lossses that started after the U.S. Federal Reserve noted it was unlikely to accelerate the tightening of monetary policy in the near future.
The dollar index dipped 0.2% to 100.18. On Thursday, the dollar reached a five-week low, and falls 1% for the week.
At the same time, the dollar remained stable at 113.32 yen, but on the way to a 1.2-percent loss for the week.
The euro was at $1.0773, after two days of strong growth. The single European currency is set to end the week with an increase of 0.9%.