Single Player FiveM

Just wondering what’s the use for the single player variant of FiveM? What’s the difference between FiveM single player and vanilla single player?

You can modify the FiveM single player (for example add vehicles), without modifying your vanilla GTA V meaning that you won’t have to have two separate GTA installs to join GTA Online or risk any GTA bans.

how do you add lspdfr to fivem single player

Not possible.

why i can’t instal it?

Two years later
Anyway, you dont need to - simply start FiveM’s client and in the first window that you see, there will be a large button towards the bottom saying “Singleplayer”. Simply press it and it’ll launch FiveM Singleplayer.