Help Adware problem

[Pedro Felipe Sosa Vera]

Hello,

Today I started having this problem when browsing in Firefox, after a couple of minutes (Maybe less) the page I'm watching gets replaced by this:

This does not happen when using Chrome. I ran Karpersky, Malwarebites and Bitdefender and neither found issues, also used CCleaner, and also tried reinstalling Firefox Browser. Is my only choice to restore to factory settings? I can't find any information on the internet regarding this "gift19.win" site.

 

[Dannydet]

Firefox has add ons to block ads.
Install them and these annoying ads should disappear

 

[steiny180]

The free NoRoot Firewall app can block sites on a url and / or IP address basis. Wildcard matching is also supported. I use the heck out of this great little app.