Well, you've been a victim of a scam. Sorry to hear that but please take your time and report it here- https://www.mozilla.org/en-US/about/legal/fraud-report/

And for removing adware/malware you'll have to follow these- Please go to Add-ons (Ctrl+Shift+A) > Extensions and remove anything suspicious (toolbars, things that you didn't installed intentionally, don't know what purpose they serve, etc). Then take a look at these-

• http://mzl.la/1xKt2ap
• http://mzl.la/1xKrH3p

OK,thanks

Sorry to say you did not win a iPhone X from Mozilla.

This is 100% FAKE and was not a message from Mozilla or the Firefox web browser. Do not give them any personal information or send them any money by any means. Variations of this sort of scam has existed for a long time, not for Firefox users but in general.

Mozilla does not do any so called surveys with claims that you have won or will receive insert expensive prizes as the two main variations have been for a iPhone X or a $1000 gift card.

Mozilla has done surveys over the years by way of http://qsurvey.mozilla.com which is surveygizmo.com however no prizes were given.

Below are a few examples of this iPhone X for a $1 Scam I have seen in last while.

Please, mark this question as solved. Sorry again that some people are doing bad things in the name of Firefox.

What came to me after the poll:

I can see why you thought it was from Mozilla or the Firefox web browser due to the Firefox icon being misused on the page.

yes James! Of course on the electronic payment page used "https". so they were just looking for the same $ 1 and no more.this is true?