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UBlock was initially named "μBlock" but the name was later changed to "uBlock" to avoid confusion as to how the Greek letter μ (Mu/Micro) in "μBlock" should be pronounced. UBlock Origin is actively developed and maintained by its creator and lead developer Raymond Hill. uBlock Origin's stated purpose is to give users the means to enforce their own (content-filtering) choices. uBlock Origin has received praise from technology websites and is reported to be much less memory-intensive than other extensions with similar functionality. The extension is available for Chrome, Chromium, Edge, Firefox, Opera, Pale Moon, as well as versions of Safari prior to 13.
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UBlock Origin ( / ˈ j uː b l ɒ k/ " YOO-block" ) is a free and open-source browser extension for content filtering, including ad blocking.
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