I would appreciate if anyone would share his (her?) results from within the browser
I am not speed testing the bare Curve25519 functions but the getPublicKey, sign and verify function from Cryto class (converted to javascript).
On my i7 950 3.07GHz (you need to tell us what cpu u r using) using firefox v26 I get:
Speed test
Javascript needs 21.66ms/getPublicKey
Javascript needs 46.92ms/sign
Javascript needs 39.34ms/verify
Finished