According to the Librewolf documentation, fingerprinting can be turned off, but they recommend adding the Canvas Blocker extension in its place. That is my current setup, as I didn't like that websites in Librewolf couldn't get the correct time and time zone for me.
Here's the direct quote from the Librewolf documentation:
If you don't like the downsides of RFP, or you are not concerned about fingerprinting, you can disable RFP in the LibreWolf settings, or in your overrides. In that case consider using an extension like CanvasBlocker to retain at least a minimum amount of fingerprinting protection.
I have been using Librewolf for several months now, and I am quite happy with it. In terms of user privacy, Librewolf by default has some strict settings enabled, like Resist Fingerprinting. Resist Fingerprinting does cause some minor problems, like incorrect timezones, but there is a workaround, as stated on the Librewolf website.