uBlock Origin: History, Features & Supported Platform

uBlock Origin:

uBlock Origin is a free and open-source browser extension for content filtering, including advertisement blocking. The extension is accessible for Chrome, Chromium, Edge, Firefox, Opera, Pale Moon, and forms of Safari preceding.

UBlock Origin has gotten acclaim from technology sites. It is accounted for to be significantly less memory-concentrated than other extensions with comparable functionality. UBlock Origin’s expressed objective is to give clients the necessary resources to implement their own (content-separating) choices.

Starting in 2021, uBlock Origin is still effectively evolved and kept up with by its maker and lead designer Raymond Hill.


1. uBlock

uBlock was at first named “μBlock” yet the name was subsequently different to “uBlock” to stay away from disarray with regards to how the Greek letter μ (Mu/Micro) in “μBlock” ought to be articulated. Improvement began by forking from the codebase of HTTP Switchboard alongside one more blocking augmentation called uMatrix, intended for cutting-edge users. uBlock was created by Raymond Hill to utilize local area kept up with blocklists while adding features and raising the code quality to deliver standards. First delivered in June 2014 as a Chrome and Opera extension, by winter 2015 the extension had extended to different browsers.



The uBlock project official vault was moved to Chris Aljoudi by unique engineer Raymond Hill in April 2015, because of the disappointment of managing demands. Anyway, Hill promptly self-forked it and proceeded with the work there. This form was subsequently renamed uBlock Origin and it has been totally separated from Aljoudi’s uBlock. Aloud made ublock.org to have and elevate uBlock and to demand gifts. Accordingly, uBlock’s author Raymond Hill expressed that “the gifts looked for by ublock.org are not helping any of the individuals who contributed most to make uBlock Origin.


“The improvement of uBlock halted in August 2015 and it has been irregularly refreshed since January 2017. In July 2018, ublock.org was procured by AdBlock and since February 2019 started permitting “Satisfactory Ads”, a browser run by Adblock Plus that permits a few advertisements that are considered “OK”, and for which the bigger distributors pay a fee.

uBlock Origin stays autonomous and doesn’t permit promotions for payment.

uBlock Origin

Raymond Hill, the originator and unique creator of uBlock, started in 2015 kept on dealing with the extension under the name uBlock Origin, once in a while adapted as uBlock0, and truncated as uBO.

A joint Sourcepoint and comScore review revealed an 833% development rate north of a ten-month following period finishing off with August 2015, the most grounded development among browserming listed. The report ascribed the development to the longing of clients for unadulterated blockers outside the “adequate publicizing” browser.

In January 2016, It was added to the archives for Debian 9 and Ubuntu 16.04. The augmentation was granted “Pick of the Month” by Mozilla for May 2016.

On December 11, 2016, Nik Rolls delivered a fork of uBlock Origin for the Microsoft Edge browser (presently known as Microsoft Edge Legacy). In April 2020, this fork was belittled as Microsoft supplanted Microsoft Edge Legacy with a Chromium-based Edge.

As of January 2021, the uBlock Origin Chrome augmentation had more than 10 million dynamic clients and the Firefox adaptation had 5 million dynamic users.

The undertaking explicitly denies gifts and on second thought informs allies to give to maintainers with respect to impede lists.


Blocking and filtering

uBlock Origin upholds most of Adblock Plus’ channel linguistic structure. The well-known channel records EasyList and EasyPrivacy are empowered of course, alongside the malware space blocklist URLHaus. The extensions are fit for bringing in has records and various local areas kept up with records are accessible at the establishment. Among the host documents accessible, Peter Lowe’s advertisement servers and following list and arrangements of malware areas are likewise empowered as default. A few extra features incorporate dynamic filtering of contents and iframes and a device for page component stowing away.

uBlock Origin incorporates a developing list of elements not accessible in uBlock, including:

  • A mode to help those with shading vision lack.
  • A powerful URL filtering feature.
  • Logging usefulness.
  • Interface upgrades include a DOM overseer, protection situated choices to impede connect prefetching, hyperlink evaluating, and IP address spills through WebRTC (uBO-Extra is expected to hinder WebRTC associations in Chromium).

Webpage explicit changes to flip the impeding of pop-ups, severe area hindering, restorative separating, obstructing distant text styles, and JavaScript handicapping were likewise added to uBlock Origin. The Firefox variant of uBlock Origin has an additional element that assists with thwarting endeavors by sites to dodge blockers.

Supported platforms

uBlock Origin is actively developed for applications based on two major layout engines.

Currently supported

  • Blink
    • Google Chrome/Chromium (desktop)
    • Opera (desktop)
    • Microsoft Edge (Chromium) (desktop)
  • Gecko
    • Firefox (desktop: 0.85.5 and later)
    • Firefox for Android (mobile: and later)
    • Thunderbird (desktop: 1.3.0 and later)
    • SeaMonkey

Previously supported

  • WebKit
    • Safari (desktop: uBlock Origin 1.10.0 and later (Beta)). Stopped working with macOS 10.15 Catalina and Safari 13.
  • EdgeHTML
    • Microsoft Edge (legacy) (uBlock Origin available in Windows Store in beta from 1.10.0).

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