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i) add on
Browser extensions, plug-ins, and add-ons are generally similar; they are software components that add features to an existing computer program. This can be part of a stand-alone app or part of an internet browser.
ii) URL
URL (Uniform Resource Locator) is a unique identifier used to locate a resource on the Internet. It is also referred to as a web address
Titany answered the question on November 30, 2021 at 11:21
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