To many web browser session to cryptomator-vault

Hi All, I am using Cryptomator quit a long time, I have 2 Dokany vaults, one is my personal OneDrive account and the other on the Business OneDrive account, and I am pretty satisfied, but since my business laptop has only 16GB I need to monitor memory usage and close unnecessary applications, only now I noticed that my web browser (firefox) established many connections to the cryptomator-vault, each firefox session can use up to 1GB memory if I don’t restart Firefox on regular basis, is this normal?