I have been using MetaMask without issue on Firefox for the last 12 months. Then suddenly for no obvious reason I cannot access the MM wallet on my PC using the Firefox browser as it won't even load the login page. I would really rather not have to remove and restore the extension as that is a pain to reestablish all the accounts, tokens and networks. Anyone got an idea.....I have cleared cache and history and updated browser plus restarted PC several times. Tried with VPN on and off. Also cleaned PC with Norton Ultimate so I have the green light there. Not sure what else to do. I have seen others with this issue posting online with historical problems exactly like mine but as yet haven't found any solutions listed that work.