Same here,only on HMax.
And my desktop PC too. ALL THE TIME, unannounced and random HM pop-up message. Not once but numerous times! Already logged in (HMAX forum) and both FF adblock or not.Android still not happening. You do t have a Max problem. You have a phone problem
Not once but numerous try for at least one month. Every session. Clear histories and data ...... nope, no effect. I got Avast Pro and Malwarebytes .... all checks out okay.Try again. If you have virus/malware software. Run it. Then restart your device. If that doesn't work it must be a HM site issue.
Apparently fixed. Only ONE pop-up message for the entire HM session. Thanks Nth Degree. I download and installed Chrome. Switched from Firefox to Chrome. Cross my fingers !!I tried clearing Safari history/data but didn’t help.
Switched to Chrome and so far so good.