Fix the majority of the problem by using RAMdisk and installing the Portable version of any Browser in RAMdisk, this allows it to have its cache and profile folders in RAM, it also speeds up page-loading (even from SSDs)
I have this issue on all browsers (Firefox, Chrome, Opera), Firefox is most definitely the worst and even changing the interval it still writes excessively when I am using RAMdisk as its cache, I also have Opera Portable installed in & running from the RAMdisk with its cache & profile folder in there too, while the writes are considerably less than Firefox, it still writes to my SSD when I load pages???
If I let it sit idle it gets the odd 60KB spike every 2 seconds or so, if I close the browser(s) and let it settle, it doesn't stop writing too the SSD, but does so much less than having a browser just sitting open... and like I say if I keep clicking link after link in pages (in Opera too, but much less than Firefox) it does constantly write too the SSD even though the cache is not in the SSD (I have verified the RAMdisk cache is working)
Firefox is so bad I've had to stop using it, I've not tried the portable version of Firefox and Chrome as I was quite happy with the massively reduced writes using Opera portable in RAMdisk, now I use circa 7-10GB per day (all day on PC) whereas before all these changes it was 15-20GB (using SSDlife Pro to monitor write usage and task manager to monitor real-time writes to C-drive)
Below is a list of the files that are constantly writing in Windows 10 when the system is idle, these increase when the browser is actively being used even though its installed in RAMdisk with its profile folder in there too, this leads me to believe the spikes caused by browsing use is related to the wifi. (I have correct driver installed)
Unistore
EVTX
Datastore.db
SOFTWARELOG1
Wifi.etl
UserNotPresent.etl
UsrClass.Dat.Log2
$logfile
I notice on my Windows 7 install it does not write too the SSD at all...!! this seems to be unique to Windows 10, I've even uninstalled Cortana, disabled live tiles, Search, Indexing and loads of other things to try and stop it.