Where is there official word from Mozilla that they collaborated with George Soros. Other than this unknown news site with this single article.
http://www.activistpost.com/2017/08/mozilla-joins-george-soross-efforts-launching-strike-fake-news.html
It's an intentionally misleading article. Notice how they don't say that 'Mozilla collaborated with Soros', they say that 'Mozilla Joins George Soros’s Efforts In Launching A Strike Against “Fake News”'. The only reason Soros in mentioned is to get clicks from easily offended conspiracy theorists. The real news is that Mozilla created a program called Mozilla Information Trust Initiative.