The 12.5 km (7.8 mi)[1][2] long line was operated for most of its life by the Compagnie des omnibus électriques Fribourg–Farvagny, and linked the old Fribourg/Freiburg railway station with Farvagny-le-Grand.

[5] At the start of the 20th century, the Comité de l'initiative Fribourg–Daillettes was founded, with the goal of obtaining a concession for, and constructing, a metre gauge tramway from Fribourg to Les Daillettes, a neighborhood of Villars-sur-Glâne.

Subsequently, however, the committee learned of the achievements of a new "trackless railway" in Austria, and in 1908 sent a delegation to inspect it.

As a consequence of the inspection, the committee decided in 1909 to pass up the tramway concession in favour of trolleybuses.

Prior to the bridge over the Glâne, a branch line about one km (0.6 mi) in length was planned to the hamlet of Sainte-Apolline, also part of Villars-sur-Glâne.

On 31 August 1910, the committee received a concession valid up to 1 September 1915, which in 1912 was finally extended to 1 February 1932.

On 1 November 1916, the 2.7 km (1.7 mi) long Magnedens (Es Bous)–Farvagny-le-Grand section was opened.

With the completion of this section, the maximum extent of the line was reached, because the planned branch to Sainte-Apolline was never built.

As a result of economic difficulties after World War I, an extension of the system to Bulle could no longer be pursued.

From then onwards, the electrical contact troller had to be exchanged, in a cumbersome procedure, every time a trolleybus used the level crossing; this task was carried out by an employee of the company's nearby depot.

[1] From the day following the system's closure, the CEG used only diesel buses, which could run continuously through to Bulle.

The manufacturer of all of the vehicles, the Daimler-Motoren-Gesellschaft in Wiener Neustadt, Austria, fabricated the chassis and bodies, and installed the electrical equipment.