Since the past 2-3 months with the new updates Mozilla has become extremely slow, almost to the point where its not even usable anymore. It doesn't matter if all plugins are disabled, it doesn't matter what device I use (desktop, mobile or laptop) the browser is simply at snail pace. It doesn't matter what internet connection I have either, if it's a home connection or wifi at work on a completely different network. I get constant white screen pages with "network not found" messages, constant errors to load pages.
Any ideas what has happened here?
I've followed any instructions to resolve hanging browsers, but none of it does anything to resolve the issue.