Hi Thank you for your question. Firefox for Android does not come with a pop-up blocker, but users have the choice to install one if they wish from the add-ons site. You can read more about how to do this [https://support.mozilla.org/en-US/kb/find-and-install-add-ons-firefox-android here]. I hope this helps, but if not, please come back here and we can look into a different solution for you.