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How do I block pop-unders?

  • 1 reply
  • 1 has this problem
  • 9 views
  • Last reply by FredMcD

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After some extremely bad customer service encounters with Tripadvisor yesterday (they gave me an unsolicited spam phone call, so I pulled up their site to complain and found that they have no customer service contact address), I discovered today that to add insult to injury, the *$%^-ing Tripadvisor pop-unders have caused Firefox to forget my saved session of 60+ tabs! I searched for how to block pop-unders, but all I found was how to block pop-ups, which I'm already doing according to Tools > Options. Can anyone here please tell me how I get rid of these wretched pop-unders and stop that ever happening again? Thanks.

After some extremely bad customer service encounters with Tripadvisor yesterday (they gave me an unsolicited spam phone call, so I pulled up their site to complain and found that they have no customer service contact address), I discovered today that to add insult to injury, the *$%^-ing Tripadvisor pop-unders have caused Firefox to forget my saved session of 60+ tabs! I searched for how to block pop-unders, but all I found was how to block pop-ups, which I'm already doing according to Tools > Options. Can anyone here please tell me how I get rid of these wretched pop-unders and stop that ever happening again? Thanks.

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You may have ad / mal-ware. Further information can be found in the Troubleshoot Firefox issues caused by malware article.

Run most or all of the listed malware scanners. Each works differently. If one program misses something, another may pick it up.