Mobile crane with two bridge supports (14, 16) and a vibration damper system for damping a vibration of the mobile crane, wherein the vibration damper system has: - at least one sensor device mounted on the mobile crane, which is designed to detect at least two different movement components of a movement of the mobile crane relative to a reference system, wherein the movement components each involve a linear or a rotational movement component, - a first active damper arrangement disposed on the first bridge support, which has a damper mass and a motor fastened to the mobile crane with which the damper mass is able to be driven along a first straight line extending in the direction of extension of the first bridge support relative to the mobile crane, - a second active damper arrangement disposed on the second bridge support, which has a damper mass and a motor fastened to the mobile crane with which the damper mass is able to be driven along a second straight line extending in the direction of extension of the second bridge support relative to the mobile crane, and - a regulation device, of which the measurement variable input is connected to the sensor device and of which the adjustment variable output is connected to the motor of the first damper arrangement and also to the motor of the second damper arrangement, wherein the regulation device is configured such that, based on the sensor signals detected by the sensor device, activation signals for the motors will be generated with which the motors can be activated such that the damper masses carry out movements along their straight lines relative to the mobile crane compensating for the vibration movement of the mobile crane. - at least one sensor device mounted on the mobile crane, which is designed to detect at least two different movement components of a movement of the mobile crane relative to a reference system, wherein the movement components each involve a linear or a rotational movement component, - a first active damper arrangement disposed on the first bridge support, which has a damper mass and a motor fastened to the mobile crane with which the damper mass is able to be driven along a first straight line extending in the direction of extension of the first bridge support relative to the mobile crane, - a second active damper arrangement disposed on the second bridge support, which has a damper mass and a motor fastened to the mobile crane with which the damper mass is able to be driven along a second straight line extending in the direction of extension of the second bridge support relative to the mobile crane, and - a regulation device, of which the measurement variable input is connected to the sensor device and of which the adjustment variable output is connected to the motor of the first damper arrangement and also to the motor of the second damper arrangement, wherein the regulation device is configured such that, based on the sensor signals detected by the sensor device, activation signals for the motors will be generated with which the motors can be activated such that the damper masses carry out movements along their straight lines relative to the mobile crane compensating for the vibration movement of the mobile crane.