For example, a scheduled anti-virus scan may pop up a dialog blocking the GUI you are testing.

例如，一次预定的反病毒扫描可能弹出一个对话框来阻止正在测试的GUI。

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Pop-up blocking software can help limit the images from being displayed on websites.

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Firefox was first to popularize tabbed browsing and first to integrate pop-up blocking, spell checking and antiphishing into the browser.

FORBES: Magazine Article

Firefox's new features include automatic updates (users previously had to complete an installation for each update) and extra pop-up ad blocking.

FORBES: Magazine Article