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Firefox not blocking Popup windows since last two weeks

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  • 1 has this problem
  • 3 views
  • Last reply by Ari94

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Firefox version 43.0.1 I have noticed since last two weeks on some website Popup window appears. Today Firefox had also blocked a Popup window but after that did not stop.

My computer OS, Drivers, Software, Adobe flash, Java also Windows Vista is update. I have also read Troubleshoot Firefox issues caused by malware and non of the solution apply to me. Malwarebytes and Norton is also updated and running.

I wonder why this thing started any help will be appreciated. Regarding my popup settings refer screen shot.

Thank you

Firefox version 43.0.1 I have noticed since last two weeks on some website Popup window appears. Today Firefox had also blocked a Popup window but after that did not stop. My computer OS, Drivers, Software, Adobe flash, Java also Windows Vista is update. I have also read Troubleshoot Firefox issues caused by malware and non of the solution apply to me. Malwarebytes and Norton is also updated and running. I wonder why this thing started any help will be appreciated. Regarding my popup settings refer screen shot. Thank you
Attached screenshots

All Replies (2)

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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.


Adblock Plus {web link} Blocks annoying video ads on YouTube, Facebook ads, banners and much more. Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Adblock Plus Pop-up Addon {web link} Adblock Plus Pop-up Addon extends the blocking functionality of Adblock Plus to those annoying pop-up windows that open on mouse clicks and other user actions.

Forum; Adblock Plus Homepage {web link}

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FredMcD said

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.

Adblock Plus {web link} Blocks annoying video ads on YouTube, Facebook ads, banners and much more. Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Adblock Plus Pop-up Addon {web link} Adblock Plus Pop-up Addon extends the blocking functionality of Adblock Plus to those annoying pop-up windows that open on mouse clicks and other user actions.

Forum; Adblock Plus Homepage {web link}


Hi, Thank you for quick reply. I have already mentioned in my question " I have also read Troubleshoot Firefox issues caused by malware and non of the solution apply to me. Malwarebytes and Norton is also updated and running. " Regarding Adblock those are already running.