How to be free from unwanted windows on the site?

[Bruno]

Hi! Every time I open the Firefox Browser on the bottom I see 3 unwanted windows with URL: {if $ticker->lng_id==1}{else}{"???????? ???? ??????????"|translate:10}{/if}
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How would be possible to be free from them?
Bruno

[mapx]

it sounds like malware

scan your system for malware / adware
use malwarebytes antimalware (free version) ==> https://www.malwarebytes.org/
and adwcleaner http://www.bleepingcomputer.com/download/adwcleaner/