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You may keep getting a prevent this site from opening a pop-up window message which is a nuisance hence the need for a pop-up blocker. Sometimes, your pop-up blocker just fails to do the job. Unfortunately, that doesn’t always happen. They’re annoying, but if you have a pop-up blocker installed, they should be blocked. Pop-ups are often used for advertising or to spread malware or viruses. This is not the only problem associated with the browser as sometimes, Firefox fails to load pages after an update. By default, Firefox doesn’t block pop-ups, which means you can find yourself bombarded with unwanted ads and other annoyances. Firefox is a great browser, but it can be a bit of a pain when it comes to pop-ups.
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