I had almost the same problem,
My google chrome wouldn't load pages, so I had to move over to mozilla firefox.

Unfortunetaly most things that i had there (addons) don't work on firefox and I was really sad.

But after 3 months I randomly opened google chrome and it worked.

IDK WTF but I am staying with firefox now as i have all my passwords saved here.

I got to contact one of the workers at google chrome on twitter, and they had no idea what was going on.
When workers at google chrome don't know why it is not working for you, you know you are fucked.