When the mod is loaded with EnviroMine or Tough As Nails，the campfire will raise player`s body temperture.

Yes Tough As Nails is not in 1.7.10 lol

you can add it to EnviroMine and Tough As Nails is not in 1.7.10 and use this ver https://www.curseforge.com/minecraft/mc-mods/enviromine-for-galaxy-odyssey it's the most up-to-date

As Kiba said, EnviroMine lets you add temperature to any block in their config.

First, launch the game with EnviroMine and Campfire Backport installed. Click the Mods button on the title screen, then find EnviroMine and click on Config. Then go to Profile Settings -> default_Settings.cfg -> Config and set Generate Blank Configs to true. When you click done, EnviroMine will generate configs for all of your mods and set the option back to false. It can take a while if you have a lot of mods.
Now you can go back into the config and set campfires to raise your temperature. Go to Custom Configs -> campfirebackport.cfg -> blocks. I'd recommend setting the campfires to the same values as torches. That would be Enable Temperature to true, Temperature to 75.0, and Air Quality to -0.25. You could also set Sanity to 0.1 for regular campfires (since they're meant to be cozy) and -0.1 for soul campfires (since that's the value for Soul Sand).

Hope this helps!