[1] Friido Kirs was born in the village of in Pihtla on the island of Saaremaa into a family of farmers.
In 1910, he was conscripted into the 87th Neschlot Infantry Regiment of the Imperial Russian Army in Novgorod Governorate.
After his release, he returned to Saaremaa and was elected Mayor of Pihtla Parish in 1919 and later worked as a primary school teacher in Sandla and Ilpla, becoming the latter school's headmaster until 1927.
[2] In 1920, Kirs Became an alternate member of the 1st Riigikogu, representing the Estonian Labour Party.
In 1942, he was appointed the acting head teacher of Ilpla Primary School and continued to work a small farmer.