i have login sync Firefox but i just installed a Linux version but it would not take what i typed into security key .... what format restriction that is not explained have liked how sync works across many systems i have used ... just started Garuda and when i used FireDragon and tried to sync it would not continue when i tried a few KEY but it would not tell me why it would not work would like to see what is required ... later when i looked for help all i see is a multi group of 4 digits but still not sure what form it is looking .... thought a simple single number or letter combo was needed....