When comparing µBlock Origin vs AdBlock Plus, the Slant community recommends µBlock Origin for most people. In the question“What are the best ad blocking browser plugins?” µBlock Origin is ranked 2nd while AdBlock Plus is ranked 8th. The most important reason people chose µBlock Origin is:
Licensed under GPLv3.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Free and open source
Licensed under GPLv3.
Pro Offers a quick way to whitelist websites
Pro Does more than just blocking ads
The plugin, through filters, can block malicious websites and tracking, making it very versatile.
Pro Lightweight
The plugin typically uses less memory and CPU time in comparison with other solutions, including Adblock Plus and Ghostery.
Pro Supports element hiding
Pro Free & open source
Pro Blocks a wide selection of annoying ads
Video ads on YouTube, Facebook ads, flashy banners, pop-ups, pop-unders and much more.
Cons
Con Uses too much RAM
AdBlock+ tends to use a lot of memory, which has been documented in many use cases as well as admitted by AdBlock themselves. Considering there are alternatives out there that can block ads successfully with half the RAM usage as AdBlock, one has to wonder why this is a problem specific to AdBock.
Con Users automatically opted in to whitelist
AdBlock+ has an automatic whitelist when installed that allows certain advertisers through the blocking mechanism. The fact that these advertisers pay for this privilege makes this particular scenario rife with conflict of interest.