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Not allowing pop ups

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Firefox is not allowing pop ups even though the block pop up box is unchecked.

Firefox is not allowing pop ups even though the block pop up box is unchecked.

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Start Firefox in Safe Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance/Themes).


There is also security software that can block pop-ups, so can can check the advanced settings for Firefox in such programs.