U.S. dollar banknotes.

The dollar firmed against major currencies for a third straight day on Friday, as investors took shelter in the U.S. currency amid worsening economic fallout from the coronavirus pandemic.

"As we see poor data coming in from Europe, UK, Italy, if you're trying to be rushing anywhere, it would be U.S. Treasuries and the U.S. dollar as a safe haven," said John Doyle, vice president of dealing and trading at Tempus Inc in Washington.