According to Matt Maiocco of the Press Democrat, the 49ers signed cornerback Gabe Franklin today.

From Matt Maiocco's Blog:
The 49ers signed first-year cornerback Gabe Franklin, a first-year player from Boise State. He went to camp last year with the Chargers, spent a brief amount of time on the Chargers' practice squad, was cut, and finished the season on the Giants' practice squad. The Giants cut Franklin (5-foot-10, 188 pounds) in May and remained unsigned until Thursday.