Problem solved with a help of Windows Repair tool from tweaking.com. Must be some services/windows system file issues. Not a browser issue for sure

Set on default

Hope you looked into first post ^^



And this issue is in Instagram, Facebook apps from MS store, so it's not totally Firefox issue then

Dunno if this really needs, since it seems that it is not Firefox individual issue, smth in OS :(



{
"application": {
"name": "Firefox",
"osVersion": "Windows_NT 10.0",
...

Bump :(

Have some russian symbols there, sorry :huh:



MiniToolBox by Farbar Version: 17-06-2016
Ran by Dezik (administrator) on 16-11-2018 at 02:54:07
Running from "C:\Users\Dezik\Downloads"...

With 1.1.1.1 & 1.0.0.1 same thing, but won't ping facebook now, instagram ping works. Tried with 8.8.8.8 and 8.8.4.4, IE now opens facebook and instagram. MS apps still doesn't open it, as well as...

Facebook, Instagram, Oculus works fine everywhere except Firefox. IE, ping, tracert works like a charm.
Pinging facebook.com leads to 31.13.81.36, instagram leads to 34.233.11.34
Tracert:


...

Started to happen almost month ago, drives me crazy. Firefox can't connect to any facebook server website like facebook.com, instagram.com, oculus etc. Activating vpn addon, like Browsec, allows me...

Greetings. Got this annoying issue with my Asus X205TA laptop. Had it with Windows 8.1 and decided to upgrade it to Windows 10, once it got installed, as always, win10 downloaded and installed...