Security guards have fired into the air to drive back protesters taking part in a demonstration outside the French embassy.
Protesters loyal to Syrian President Bashar al-Assad also briefly broke into the US embassy.
No casualties were reported in the attacks but a US official said Washington condemned Syria’s slow response and its failure to the prevent the assault on its embassy.
The protests come days after the US and French ambassadors visited the opposition stronghold of Hama in central Syria.
France has spearheaded attempts to pass a United Nations Security Council resolution condemning Assad’s government
crackdown on protestors. It has said the Syrian president has lost his legitimacy over the unrest, which has killed more than 1,300 people since it started some 15 weeks ago.
It coincides with government-organised talks in Damascus on possible political reforms after four months of unrest against the government.