This mod reduces or removes the fireflies / particles across all biomes.

MODELS\EFFECTS\HEAVYAIR\ALIEN\ALIEN.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\ALPINE\ALPINE.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\BUBBLE\BUBBLE.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\CAVE\CAVE.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\CAVE\CAVE2.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\EARTH\EARTH.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\EARTH\EARTH2.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\EARTH\NIGHTTIME.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\FIRESTORM\FIRESTORMDOT.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\FIRESTORM\FIRESTORMGAS.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\FIRESTORM\SCORCHEDGASOLD.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\FIRESTORM\SPARK.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\FIRESTORM\STORMFLAME.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\FIRESTORM\STORMSMOKE.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\FOGSWAMP\FOGSWAMP.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\FOGSWAMP\FOGSWAMP02.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\FOGSWAMP\NIGHTTIME.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\GRAVITYSTORM\GRAVITYSTORMEMBER.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\GRAVITYSTORM\GRAVITYSTORMGAS.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\GRAVITYSTORM\GRAVITYSTORMSPIKE.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\GRAVITYSTORM\GRAVITYSTORMSPIKEL.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\GRAVITYSTORM\SPARK.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\GRAVITYSTORM\STORMFLAME.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\JUNGLE\JUNGLE.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\MARS\SANDCAVE.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\MARS\MARS.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\MARS\MARS2.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\MARS\MARS3.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\MARS\MARS4.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\MOUNTAIN\MOUNTAIN.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\MOUNTAIN\MOUNTAIN2.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\MOUNTAIN\SANDCAVE.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\RADIOACTIVE\RADIOACTIVEASH1.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\RADIOACTIVE\RADIOACTIVEFOG.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\RADIOACTIVE\RADIOACTIVEGAS.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\SCORCHED\SCORCHDOT.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\SCORCHED\SCORCHEDGAS.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\SCORCHED\SCORCHEDGASOLD.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\SCORCHED\SCORCHFLAME.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\SCORCHED\SPARK.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\SNOW\SNOW2.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\SWAMP\SWAMP.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\SWAMP\SWAMP2.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\TOXIC\TOXICGAS.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\TOXIC\TOXICRAIN1.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\TOXIC\TOXICRAIN2.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\TOXIC\TOXICSPORE.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\UNDERWATER\BUBBLE1.HEAVYAIR.MBIN
MODELS\EFFECTS\HEAVYAIR\WATER\WATER.HEAVYAIR.MBIN

MODELS\EFFECTS\HEAVYAIR\ALPINE\ALPINE.SCENE.MBIN
MODELS\EFFECTS\HEAVYAIR\SNOW\SNOWAIR.SCENE.MBIN
MODELS\EFFECTS\HEAVYAIR\FIRESTORM\FIRESTORM.SCENE.MBIN
MODELS\EFFECTS\HEAVYAIR\GRAVITYSTORM\GRAVITYSTORM.SCENE.MBIN
MODELS\EFFECTS\HEAVYAIR\MOUNTAIN\MOUNTAIN.SCENE.MBIN
MODELS\EFFECTS\HEAVYAIR\RADIOACTIVE\RADIOACTIVE.SCENE.MBIN
MODELS\EFFECTS\HEAVYAIR\SCORCHED\SCORCHED.SCENE.MBIN
MODELS\EFFECTS\HEAVYAIR\SWAMP\SWAMP.SCENE.MBIN
MODELS\EFFECTS\HEAVYAIR\TOXIC\TOXIC.SCENE.MBIN

METADATA\SIMULATION\SOLARSYSTEM\WEATHER\BLUEWEATHER.MBIN
METADATA\SIMULATION\SOLARSYSTEM\WEATHER\BUBBLEWEATHER.MBIN
METADATA\SIMULATION\SOLARSYSTEM\WEATHER\CLEARCOLD.MBIN
METADATA\SIMULATION\SOLARSYSTEM\WEATHER\CLEARWEATHER.MBIN
METADATA\SIMULATION\SOLARSYSTEM\WEATHER\DUSTWEATHER.MBIN
METADATA\SIMULATION\SOLARSYSTEM\WEATHER\FIRESTORMWEATHER.MBIN
METADATA\SIMULATION\SOLARSYSTEM\WEATHER\GRAVITYSTORMWEATHER.MBIN
METADATA\SIMULATION\SOLARSYSTEM\WEATHER\GREENWEATHER.MBIN
METADATA\SIMULATION\SOLARSYSTEM\WEATHER\HUMIDWEATHER.MBIN
METADATA\SIMULATION\SOLARSYSTEM\WEATHER\LAVAWEATHER.MBIN
METADATA\SIMULATION\SOLARSYSTEM\WEATHER\RADIOACTIVE.MBIN
METADATA\SIMULATION\SOLARSYSTEM\WEATHER\RAINWEATHER.MBIN
METADATA\SIMULATION\SOLARSYSTEM\WEATHER\REDWEATHER.MBIN
METADATA\SIMULATION\SOLARSYSTEM\WEATHER\SCORCHED.MBIN
METADATA\SIMULATION\SOLARSYSTEM\WEATHER\SNOWWEATHER.MBIN
METADATA\SIMULATION\SOLARSYSTEM\WEATHER\SWAMPWEATHER.MBIN
METADATA\SIMULATION\SOLARSYSTEM\WEATHER\TOXIC.MBIN
METADATA\SIMULATION\SOLARSYSTEM\WEATHER\WEIRDWEATHER.MBIN

Installing No Man's Sky Mods (Steam).

Default Steam installation location:
C:\Program Files (x86)\Steam\steamapps\common\No Man's Sky\GAMEDATA\MODS

Custom Steam installation location:
E:\Steam\steamapps\common\No Man's Sky\GAMEDATA\MODS

1. Browse to the "No Man's Sky\GAMEDATA" folder.
2. Ensure there is a folder named MODS (Uppercase!) within, if not create it!
3. Place the <modname> folder into the GAMEDATA\MODS folder.
4. Delete the file: GCMODSETTINGS.MXML from No Man's Sky\Binaries\SETTINGS
(It will be auto-regenerated with a new load order based on the mods you have)

If done correctly the game will display a MOD Warning Page: Click to continue.
You should now be presented with your save games list to choose from to start playing.