Adblock Plus Explained

Adblock Plus
Developer:Eyeo GmbH[1] [2] [3]
Current CTO:
Felix H. Dahlke[4]
Former lead developers:
Wladimir Palant,
Henrik Aasted Sørensen,
Michael McDonald
Released:[5]
Ver Layout:stacked
Programming Language:JavaScript, TypeScript, CSS, HTML
Genre:Mozilla extension
mobile app
License:GPLv3

Adblock Plus (ABP) is a free and open-source[6] [7] browser extension for content-filtering and ad blocking. It is developed by Eyeo GmbH, a German software company. The extension has been released for Mozilla Firefox (including mobile),[8] Google Chrome, Internet Explorer, Microsoft Edge (Chromium based version), Opera, Safari, Yandex Browser, and Android.

In 2011, Adblock Plus and Eyeo attracted considerable controversy over its "Acceptable Ads"[9] program to "allow certain non-intrusive ads" (such as Google Ads) to be allowed under the extension's default settings. While participation in the whitelisting process was free for small websites, large advertising companies were required to pay a fee in order for their ads to be whitelisted.[10] [11]

Background

The original version of Adblock (0.1) was written as a side project for Firefox by Danish software developer Henrik Aasted Sørensen, a university student at the time, in 2002.[12] [13] It hid image ads through user-defined filters from the page but did not prevent them from being downloaded. Sørensen maintained the open-source project until Adblock 0.3 after which the project changed hands. Since Adblock 0.3, Adblock no longer officially offers "stable releases" but instead offers "development builds" or "nightly builds"; Adblock 0.3 is the last official stable release of Adblock.[14]

Starting with Adblock 0.4, in early 2003, the development of AdBlock was taken over by a developer with the pseudonym rue. Adblock 0.4 used XBL to hide the ads and with this objects like Flash or Java could also be blocked. As with prior versions, ads were still downloaded.

AdBlock 0.5, 2004, used content policies for ad blocking which prevented the ads from being downloaded instead of simply hiding them. Background images, scripts and stylesheets could be blocked through this approach as well. XBL support was dropped in this version in favor of content policies. Adblock 0.5 integrated several changes made in a fork of Adblock developed by Wladimir Palant.

Sometime after Adblock 0.5's release, the development of the project stalled. Development stagnated beginning in 2004 and entirely stopped in early 2005. Michael McDonald created a separate enhanced version of AdBlock called AdBlock Plus 0.5 to improve upon the original and add additional features. No update for the original AdBlock was issued even after Firefox 1.5's release in November 2005. An official update supporting 1.5 was released more than a month later. In the meantime, McDonald had released a compatible AdBlock Plus version for Firefox 1.5.

Palant later took over development of Adblock Plus from McDonald and rewrote the codebase, releasing Adblock Plus 0.6 in January 2006, thus making Adblock Plus a separate extension and not simply an enhanced version of Adblock.

Development of the original Adblock stopped with version 0.5 and the project was abandoned in late 2006.[15]

History and statistics

Michael McDonald created Adblock Plus 0.5, which improved on the original Adblock by incorporating the following features:

McDonald discontinued development and transferred the name to Wladimir Palant, who released Adblock Plus 0.6 with a rewritten codebase in January 2006.[16] PC World chose Adblock Plus as one of the 100 best products of 2007, featuring in at 95.[17] AdBlock Plus was initially written around Mozilla's extension API. The extension supported not just Firefox, but less popular applications like SeaMonkey, K-Meleon, Fennec, Prism, and even the Songbird media player because they each included Mozilla's Gecko rendering engine. Palant expressed reluctance to support popular but technologically unrelated browsers and stated, "I am not going to maintain two unrelated projects."[18]

In 2010, AdBlock Plus acquired the existing AdThwart extension for Chrome.[19] Palant used this as a base to build Adblock Plus for Google Chrome. It has been available since December 2010 and has over 10 million users.[20] After Firefox and Microsoft Edge adopted Google's Web Extensions API, the Chrome version became the basis for those browsers as well. Ad Block Plus became the most popular extension for Firefox, with around 14 million users as of December 2017.[21]

In 2011, Palant, Till Faida and Tim Schumacher incorporated Adblock Plus as Eyeo GmbH, stylized eyeo.

Adblock Plus was released as an app for Android devices in November 2012. On March 3, 2013, the Android app was removed from the Google Play Store along with similar ad-blocking apps.[22] Some apps remain in the Play Store with the caveat that they require root access in order to function. Adblock Plus, while not in the Play Store, is still available on the app's website. Users can download the .Apk file directly and install it as a third-party app if they allow "Unknown Sources" in Android settings. The application page as of December 2017 features the Adblock Browser for Android instead of the original app.[23]

Adblock Plus was made available for Internet Explorer in August 2013,[24] Safari since January 2014,[25] and Yandex Browser since December 2014.[26]

An Adblock Plus browser beta version was made available in May 2015, called the "Adblock Browser".[27] Adblock Browser 1.0 was released on September 7, 2015, based on Firefox for mobile.[28]

Adblock Plus has created an independent board to review what is an acceptable ad and what is not.[29] [30]

Operation

Like Mozilla's built-in image blocker, Adblock Plus blocks HTTP and HTTPS requests according to their source address and additional context information and can block iframes, scripts, and Flash. It also uses automatically generated user stylesheets to hide elements such as text ads on a page as they load instead of blocking them, known as element hiding.[31]

Android

On rooted devices, the Android app blocks ads on all web traffic including mobile networks. For non-rooted devices, ads are only blocked through a Wi-Fi connection and requires the user to set up a local proxy server for each network in order for the app to function.[32] The app uses a local proxy server to intercept web traffic and remove ads before showing content to the user. Most of the content that users are trying to block will be removed, though some content is missed, and the app is not as reliable at blocking ads as the browser versions. The app can be configured to auto-start every time the device reboots, minimizing the action required by the user.

Filters

Basic filter rules can include wildcards represented by asterisks (*). Sites and objects can be whitelisted with filters that start with two at signs (@@). Regular expressions delimited by slashes (/) can be used by advanced users. Adblock Plus also supports a more-sophisticated syntax that gives fine-grain control over filters.[33] An example of the sophisticated filtering would be wikipedia.org##div#centralNotice, which will hide the centralNotice element used by Wikipedia to display donation requests. The first part of the filter is the domain name, followed by two pound signs, and a CSS selector. This type of filtering is called cosmetic filtering, as it hides parts of the website after it has loaded. Both uBlock Origin and AdGuard's browser extension and apps also support this type of filtering.

Filter subscriptions

Users can add external filtersets. Adblock Plus includes the ability to use one or more external filter subscriptions that are automatically updated. Filterset.G is incompatible with this system (and Adblock Plus specifically recommends against using Filterset.G for other reasons as well), but other filtersets can be added by typing their addresses. A list of known Adblock Plus subscriptions is maintained on the Adblock Plus official website.[34]

EasyList[35] was the most popular Adblock Plus filter list as of August 2011, with over 12 million subscribers.[36] Created by Rick Petnel,[37] it became officially recommended by the Adblock Plus program, and filter lists for other languages were built on top of it. Petnel died in 2009[38] [39] following which Palant placed a user named "Ares2" as the new maintainer.[40] The filter lists EasyList and EasyPrivacy are both subscribed by default in uBlock Origin but not in Adblock Plus itself. Both of these filter lists will also be used by Google Chrome starting February 15, 2018, on sites not complying with the Better Ads Standards.[41]

In May 2013, the former second most popular Adblock Plus filter list, Fanboy's List, was merged with EasyList.[42]

Legal challenges

In December 2014, it was reported that Zeit Online and Handelsblatt had brought suit against Eyeo GmbH in the .[43] [44] [45] In April 2015 the court rejected the suit.[46] [47] [48] Axel Springer SE has filed a court order for the removal of the Adblock Plus post[49] though there is a redacted version[50] and people have posted videos and posts on how to get around the Axel Springer wall. However, in April 2018, Germany's Federal Constitutional Court found in favour of Eyeo and ruled that Adblock Plus did not violate any laws.[51]

In August 2017, the Admiral advertising company sent a Digital Millennium Copyright Act (DMCA) takedown notice to EasyList to remove the domain functionalclam.com from the blacklist. Admiral argues that the domain is part of its access control technology of its advertising platform, and therefore the blacklisting is an attempt to circumvent a technical protection measure, which is forbidden under the DMCA section 1201.[52]

Detection

Some webmasters have used JavaScript to detect the effects of the popular Adblock Plus filters.[53] [54] This is done by generating a honeypot-like URL, verifying its delivery, and DOM verification after the web page is rendered by the web browser, to ensure the expected advertising elements are present. Detection is simplified since the extension is not yet capable of replacing content; Loopback proxies provide this additional functionality.

These methods do not detect the presence of the Adblock Plus extension directly, only the effects of the filters. They are vulnerable to continued filter updates, and whitelist-filtering web scripts with extensions such as NoScript.

An attempt was made to detect the plug-in itself, but that detection method was rendered unusable by the 0.7.5.2 update of Adblock Plus.[55]

Google Chrome had a defect in Content Security Policy that allowed the detection of any installed extension, including Adblock Plus for Google Chrome.[56] The solution for this issue arrived in Google Chrome 18, and required each developer to make changes to their extensions.[57] Adblock Plus for Google Chrome fixed this in version 1.3.[58]

Security

Starting with Adblock Plus 3.2 for Chrome, Firefox and Opera,[59] the Adblock Plus filter syntax allowed filter lists to execute arbitrary code in the context of certain kinds of web pages via the $rewrite filter option.[60] This feature could be used by list maintainers to fix bugs in web pages caused by ad blocking or to circumvent ad blocker detection, but also could be abused by malicious filter rules.[61] This issue was not unique to Adblock Plus and affected all extensions that offered such functionality. By contrast, uBlock Origin did not support this functionality and required all such scripts to pass a manual verification by the uBlock Origin maintainers. The issue was fixed in Adblock Plus 3.5.2 for Chrome, Firefox and Opera.[62]

Reception

Ad filtering, ad whitelisting, and "acceptable ads"

See main article: Ad filtering. The owners of some websites which use third-party hosted online advertising to fund the hosting of their websites have argued that the use of ad-blocking software such as Adblock Plus risks cutting off their revenue stream.[63] [64] While some websites such as The New York Times and The Daily Telegraph have successfully implemented subscription and membership-based paywall systems for revenue,[65] many websites today rely on third-party hosted online advertising to function.

On December 5, 2011, Wladimir Palant announced that certain "acceptable" ads would be whitelisted in upcoming builds of the Adblock Plus software, with the option to remove whitelisted ads by using a custom setting in the software. According to Palant, only static advertisements with a maximum of one script will be permitted as "acceptable", with a preference towards text-only content. The announcement generated controversy both on Adblock Plus's website and on social media sites like Reddit.[66]

Starting with version 2.0, Adblock Plus started allowing "acceptable ads" by default,[67] with acceptable ad standards being set by The Acceptable Ads Committee.[68] They charge large institutions fees to become whitelisted and marked as "acceptable", stating "[Adblock Plus] only charge large entities a license fee so that we can offer the same whitelisting services to everyone and maintain our resources to develop the best software for our users." on their about page.[69]

In 2012, Adblock Plus's managing director Till Faida told the Swiss newspaper Thurgauer Zeitung that the "strategic partners" on Adblock Plus's whitelist would not be named, but that the partnership is part of the company's "Acceptable Ads" whitelist project.[70] In February 2013, an anonymous source accused Palant of offering to add his site's advertisements to the whitelist in return for one-third of the advertisement revenue.[71] In June 2013, blogger Sascha Pallenberg accused the developers of Adblock Plus of maintaining business connections to "strategic partners in the advertising industry", and called ABP a "mafia-like advertising network".[72] He alleged that Adblock Plus whitelisted all ads coming from "friendly" sites and subsidiaries, and promoted their product using fake reviews and pornography.[73] Faida responded to Pallenberg's accusations, stating that "a large part of the information concerning the collaboration with our partners is correct", but that the company did not see these industry connections as a conflict of interest. He said that the company is convinced that the "acceptable ads" business model will be successful and says that the whitelisting criteria are "completely transparent".[72] He also stated that "We have an initiative called Acceptable Ads to support websites with unobtrusive ads. Every website can participate. The [Pallenberg] article on purpose just slanders our good name".[73]

Attacks were made in 2016 against ad-blocking with paid whitelists—though Adblock Plus was not mentioned by name—by content providers who provide content free of charge to users, deriving revenue from advertisements, and by industry and government sources who criticise the "unsavoury" business model, which has been described as a "modern-day protection racket".[74]

In May 2016, Adblock Plus's parent company Eyeo began a collaboration with the online donation service Flattr to create a service that would allow users to automatically donate money to online publishers based on their engagement. The service was conceived as a way for users to automatically support online publishers as an alternative to advertising; Eyeo would acquire Flattr outright the following year, seeking to expand upon this model as Flattr's main service.[75] [76] In September 2016, Eyeo announced that it would launch a "marketplace" for ads that meet its acceptability criteria.[77]

See also

External links

Notes and References

  1. Web site: Palant . Wladimir . Introducing Eyeo GmbH, the company behind Adblock Plus . Adblockplus.org . January 10, 2014 . August 14, 2018 . https://web.archive.org/web/20180814074244/https://adblockplus.org/blog/introducing-eyeo-gmbh-the-company-behind-adblock-plus . live .
  2. Web site: Hern . Alex . Adblock Plus: the tiny plugin threatening the internet's business model . October 14, 2013 . Theguardian.com . December 13, 2016 . July 31, 2018 . https://web.archive.org/web/20180731213128/https://www.theguardian.com/technology/2013/oct/14/the-tiny-german-company-threatening-the-internets-business-model . live .
  3. News: Sartoros . Alkimos . Dernbach . Christoph . Adblock Plus: Erpresser-Vorwürfe gegen umstrittenen Werbeblocker (German) . Der Spiegel . July 3, 2013 . Spiegel.de . January 10, 2014 . May 7, 2016 . https://web.archive.org/web/20160507142657/http://www.spiegel.de/netzwelt/netzpolitik/adblock-plus-vorwuerfe-gegen-umstrittenen-werbeblocker-a-909207.html . live .
  4. Web site: New role | Adblock Plus and (A little) more . October 23, 2022 . October 23, 2022 . https://web.archive.org/web/20221023055537/https://blog.adblockplus.org/blog/new-role . live .
  5. Web site: Palant . Wladimir . Adblock Plus and (a little) more: Adblock - the evolution . adblockplus.org . December 22, 2017 . en . September 10, 2006 . July 9, 2018 . https://web.archive.org/web/20180709094404/https://adblockplus.org/blog/adblock-the-evolution . live .
  6. Web site: Adblock Plus : About . Adblock Plus . Adblock Plus . June 20, 2012 . November 3, 2011 . https://web.archive.org/web/20111103221251/http://adblockplus.org/en/about . live .
  7. Web site: Adblock Plus : Source Code . Adblock Plus . Adblock Plus . June 20, 2012 . https://web.archive.org/web/20120610235351/http://adblockplus.org/en/source . June 10, 2012 . dead.
  8. Web site: Adblock Plus :: Add-ons for Mozilla . Mozilla . Mozilla . July 10, 2011 . https://web.archive.org/web/20111016092234/https://addons.mozilla.org/en-US/mobile/addon/adblock-plus/ . October 16, 2011 . dead .
  9. Web site: Reach new audiences with Acceptable Ads . acceptableads.com . September 22, 2016 . May 4, 2019 . https://web.archive.org/web/20190504170603/https://acceptableads.com/en/solutions/ . dead.
  10. News: Google, Microsoft and Amazon pay to get around ad blocking tool . https://ghostarchive.org/archive/20221211191221/https://www.ft.com/content/80a8ce54-a61d-11e4-9bd3-00144feab7de#axzz3yUQViQs5 . December 11, 2022 . live . Financial Times . February 2015 . Cookson . Robert . subscription . January 27, 2016 .
  11. Web site: Chrome Will Soon Block Autoplay Videos With Sound—Here's Why You Should Be Worried . Rhett . Jones . September 15, 2017 . September 15, 2017 . . February 28, 2020 . https://web.archive.org/web/20200228094031/https://gizmodo.com/chrome-will-soon-block-autoplay-videos-with-sound-heres-1814207806 . live .
  12. Web site: Adblock Plus: A not so short history of Adblock . Palant . Wladimir . adblockplus.org . https://web.archive.org/web/20061109142754/http://adblockplus.org/en/history . November 9, 2006 . dead . December 22, 2017.
  13. News: The inventor of Adblock tells us he wrote the code as a 'procrastination project' at university — and he's never made money from it . O'Reilly . Lara . July 14, 2015 . Business Insider . December 22, 2017 . en . February 9, 2019 . https://web.archive.org/web/20190209164853/https://www.businessinsider.com/interview-with-the-inventor-of-the-ad-blocker-henrik-aasted-srensen-2015-7 . live .
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  15. Web site: mozdev.org - adblock: index . adblock.mozdev.org . en . December 22, 2017 . January 25, 2019 . https://web.archive.org/web/20190125152758/http://adblock.mozdev.org/index.html . dead.
  16. Web site: About Adblock Plus . Adblockplus.org . https://web.archive.org/web/20130708050413/http://adblockplus.org/en/about . July 8, 2013 . dead . November 4, 2011.
  17. PC World - The 100 Best Products of 2007 . May 21, 2007 . Dahl . Eric . . August 19, 2007 . July 29, 2008 . https://web.archive.org/web/20080729005853/http://www.pcworld.com/article/131935-11/the_100_best_products_of_2007.html . dead .
  18. Web site: 2 September 2022 . 11 February 2022 . Palant . Wladimir . How are supported applications chosen for Adblock Plus? . eyeo GmbH . Adblock Plus and (a little) more . August 29, 2022 . https://web.archive.org/web/20220829080801/https://blog.adblockplus.org/blog/how-are-supported-applications-chosen-for-adblock-plus . live .
  19. Web site: Good News, Adblock Plus Fans – Soon, There Will be a Google Chrome Extension . December 15, 2010 .
  20. Web site: Adblock Plus - Chrome Web Store . adblockplus.org . chrome.google.com . en . December 22, 2017 . March 1, 2013 . https://web.archive.org/web/20130301011821/https://chrome.google.com/webstore/detail/adblock-plus/cfhdojbkjhnklbpkdaibdccddilifddb . live .
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  22. Web site: Adblock Plus and (a little) more: Adblock Plus for Android removed from Google Play store . adblockplus.org . August 13, 2015 . September 17, 2015 . https://web.archive.org/web/20150917011057/https://adblockplus.org/blog/adblock-plus-for-android-removed-from-google-play-store . live .
  23. Web site: Install Adblock Plus for Android . adblockplus.org . August 13, 2015 . September 6, 2015 . https://web.archive.org/web/20150906042153/https://adblockplus.org/en/android-install . live .
  24. Web site: Adblock Plus 1.0 for Internet Explorer released . Adblock Plus . September 26, 2013 . September 28, 2013 . https://web.archive.org/web/20130928162952/https://adblockplus.org/releases/adblock-plus-10-for-internet-explorer-released . live .
  25. Web site: Adblock Plus for Safari Beta released . January 21, 2014 . February 1, 2014 . https://web.archive.org/web/20140201220200/https://adblockplus.org/releases/adblock-plus-for-safari-beta-released . live .
  26. Web site: Williams . Ben . Adblock Plus now available on Yandex Browser . Adblock Plus . January 23, 2015 . January 23, 2015 . https://web.archive.org/web/20150123090731/https://adblockplus.org/blog/adblock-plus-now-available-on-yandex-browser . live .
  27. News: Williams . Ben . Adblock Browser is here . May 20, 2015 . May 20, 2015 . July 22, 2015 . https://web.archive.org/web/20150722153426/https://adblockplus.org/blog/adblock-browser-is-here . live .
  28. Web site: Adblock Browser for Android . Google Play Store . September 7, 2015 . September 9, 2015.
  29. Web site: Adblock Plus creators plan independent board to decide ad acceptability . October 5, 2015 . October 6, 2015 . https://web.archive.org/web/20151006052619/http://www.pcworld.com/article/2988079/browsers/adblock-plus-creators-plan-independent-board-to-decide-ad-acceptability.html . live .
  30. Web site: AdBlock Plus to introduce independent board to oversee Acceptable Ads program . BetaNews . September 30, 2015 . October 5, 2015 . October 6, 2015 . https://web.archive.org/web/20151006004937/http://betanews.com/2015/09/30/adblock-plus-to-introduce-independent-board-to-oversee-acceptable-ads-program/ . live .
  31. Web site: FAQ - Adblock Plus internals . Adblockplus.org . November 4, 2011 . October 26, 2011 . https://web.archive.org/web/20111026221838/http://adblockplus.org/en/faq_internal#elemhide . live .
  32. Web site: About Adblock Plus for Android . adblockplus.org . August 13, 2015 . July 26, 2015 . https://web.archive.org/web/20150726165808/https://adblockplus.org/en/android-about . dead.
  33. Web site: Writing Adblock Plus filters . Adblockplus.org . November 4, 2011 . November 3, 2011 . https://web.archive.org/web/20111103214109/http://adblockplus.org/en/filters#options . live .
  34. Web site: Known Adblock Plus subscriptions . adblockplus.org . September 15, 2016 . February 28, 2020 . https://web.archive.org/web/20200228094038/https://adblockplus.org/subscriptions . live .
  35. Web site: The Official EasyList Website . easylist.to . September 15, 2016 . February 27, 2020 . https://web.archive.org/web/20200227163740/https://easylist.to/ . live .
  36. News: EasyList Statistics: August 2011 . EasyList . September 1, 2011 . September 2, 2011 . February 28, 2020 . https://web.archive.org/web/20200228094028/https://easylist.to/2011/09/01/easylist-statistics:-august-2011 . live . /
  37. News: One Man, One Long List, No More Web Ads . The Washington Post . Peter . Whoriskey . June 25, 2008 . April 23, 2010 . February 7, 2018 . https://web.archive.org/web/20180207063116/http://www.washingtonpost.com/wp-dyn/content/article/2008/06/24/AR2008062401287.html . live .
  38. Web site: Richard J. Petnel Obituary: View Richard Petnel's Obituary by Albany Times Union . Legacy.com . November 4, 2011 . June 11, 2011 . https://web.archive.org/web/20110611043607/http://www.legacy.com/obituaries/timesunion-albany/obituary-preview.aspx?n=richard-j-petnel&pid=125731751&referrer=1329 . live .
  39. Web site: Adblock Plus and (a little) more: Sad news . Adblockplus.org . November 4, 2011 . February 28, 2020 . https://web.archive.org/web/20200228094028/https://adblockplus.org/blog/sad-news . live .
  40. Web site: Adblock Plus and (a little) more: What is going on with EasyList . Adblockplus.org . November 4, 2011 . February 28, 2020 . https://web.archive.org/web/20200228094358/https://adblockplus.org/blog/what-is-going-on-with-easylist . live .
  41. News: Here's how Google Chrome's new ad blocker works . Aleksandersen . Daniel . Ctrl blog . February 6, 2018 . en . May 5, 2019 . https://web.archive.org/web/20190505233237/https://www.ctrl.blog/entry/chrome-adblocker . live .
  42. Web site: EasyList merges with Fanboy's List . EasyList . May 17, 2013 . September 3, 2013 . February 28, 2020 . https://web.archive.org/web/20200228094027/https://easylist.to/2013/05/17/easylist-merges-with-fanboy-s-list . live .
  43. Web site: Auch Zeit Online klagt gegen Adblock-Plus-Mutter Eyeo . horizont.net . de . December 17, 2014 . June 4, 2015 . April 19, 2015 . https://web.archive.org/web/20150419070557/http://www.horizont.net/medien/nachrichten/Adblocker-Klage-Auch-Zeit-Online-klagt-gegen-Adblock-Plus-Mutter-Eyeo-131979 . live .
  44. Web site: Prozessauftakt in Köln - Adblock Plus: Axel Springer klagt gegen Eyeo . Internet World Business . de . March 11, 2015 . March 15, 2015 . March 14, 2015 . https://web.archive.org/web/20150314181708/http://www.internetworld.de/onlinemarketing/adblocker/adblock-plus-axel-springer-klagt-eyeo-911380.html . live .
  45. Web site: Auch Süddeutsche klagt gegen Adblock Plus . Internet World Business . de . March 15, 2015 . March 13, 2015 . March 14, 2015 . https://web.archive.org/web/20150314181916/http://www.internetworld.de/onlinemarketing/adblocker/sueddeutsche-klagt-adblock-plus-912568.html . live .
  46. http://www.rechtsprechung-hamburg.de/jportal/portal/page/bsharprod.psml?doc.id=JURE150011562&st=ent&doctyp=juris-r&showdoccase=1 Landsgericht Hamburg 16. Kammer für Handelssachen, Urteil vom 21.04.2015, 416 HKO 159/14
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  48. Web site: Landgericht Hamburg: Adblock Plus darf weiter blocken . heise online . April 21, 2015 . de . April 30, 2015 . April 26, 2015 . https://web.archive.org/web/20150426034231/http://www.heise.de/newsticker/meldung/Landgericht-Hamburg-Adblock-Plus-darf-weiter-blocken-2616148.html . live .
  49. AdBlock Plus accuses Axel Springer of censorship after ad-block move . . November 13, 2015 . en-US . November 13, 2015 . https://web.archive.org/web/20151113151606/http://digiday.com/publishers/adblock-plus-accuses-axel-springer-censorship-ad-block-move/ . live .
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  54. Web site: Content Filters and Proxy Detection . BrowserLeaks.com . June 22, 2016 . The set of demos that try to determine Content Filters usage, is the type of applications that operate between the browser and the web page, and are designed to manipulate the connection and content of a visited web pages. Among them are TOR Browser, Privixy, Adblock Detectors. . June 17, 2016 . https://web.archive.org/web/20160617050314/http://www.browserleaks.com/proxy . live .
  55. Web site: Detailed changelog for Adblock Plus 0.7.5.2 . Adblockplus.org . November 4, 2011 . September 29, 2011 . https://web.archive.org/web/20110929153144/https://adblockplus.org/en/changelog-0.7.5.2 . dead .
  56. Web site: Intro to Chrome addons hacking: fingerprinting . The World. According to Koto . February 17, 2012 . June 22, 2016 . Webpages can sometimes interact with Chrome addons and that might be dangerous, more on that later. Meanwhile, a warmup - trick to detect addons you have installed. . July 7, 2016 . https://web.archive.org/web/20160707075823/http://blog.kotowicz.net/2012/02/intro-to-chrome-addons-hacking.html . live .
  57. Web site: Google Chrome Extensions: Migrate to Manifest V2 . February 11, 2013 . January 21, 2013 . https://web.archive.org/web/20130121133228/http://developer.chrome.com/stable/extensions/tut_migration_to_manifest_v2.html . live .
  58. Web site: Adblock Plus 1.3 for Google Chrome released . Adblockplus.org . February 11, 2013 . February 3, 2013 . https://web.archive.org/web/20130203115841/http://adblockplus.org/releases/adblock-plus-13-for-google-chrome-released . live .
  59. Web site: Adblock Plus and (a little) more: Adblock Plus 3.2 for Chrome, Firefox and Opera released . July 17, 2018 . adblockplus.org . en-us . April 4, 2020 . August 9, 2020 . https://web.archive.org/web/20200809223702/https://adblockplus.org/releases/adblock-plus-32-for-chrome-firefox-and-opera-released . live .
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  64. Web site: Why Ad Blocking is devastating to the sites you love . . March 6, 2010 . June 14, 2017 . July 19, 2017 . https://web.archive.org/web/20170719172320/https://arstechnica.com/business/2010/03/why-ad-blocking-is-devastating-to-the-sites-you-love/ . live .
  65. Web site: Two years in: Reflections on the New York Times paywall . . March 28, 2013 . June 28, 2013 . June 4, 2013 . https://web.archive.org/web/20130604180158/http://www.journalism.co.uk/news/two-years-of-the-new-york-times-paywall/s2/a552534/ . live .
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  67. Web site: What are Acceptable Ads? . Adblock Plus . May 12, 2019 . October 11, 2023 . https://web.archive.org/web/20231011111043/https://adblockplus.org/en/acceptable-ads#what-are-those . live .
  68. Web site: March 24, 2020 . Acceptable Ads Committee . Acceptable Ads . May 12, 2019 . May 4, 2019 . https://web.archive.org/web/20190504170715/https://acceptableads.com/en/committee/ . live .
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  70. News: Mit aufdringlicher Werbung übertrieben . de . November 20, 2012 . June 28, 2013 . https://web.archive.org/web/20130629223125/http://www.thurgauerzeitung.ch/aktuell/digital/Mit-aufdringlicher-Werbung-uebertrieben;art119505,3206247 . June 29, 2013 . dead.
  71. Web site: Media mafiosos: Is Adblock Plus shaking down websites for cash to let ads through? . . February 21, 2013 . May 23, 2013 . June 26, 2013 . https://web.archive.org/web/20130626063455/http://www.digitaltrends.com/web/adblock-plus-accused-of-shaking-down-websites/ . live .
  72. Web site: Serious accusations against Adblock Plus . . June 26, 2013 . dead . https://web.archive.org/web/20131208011244/http://www.h-online.com/newsticker/news/item/Serious-accusations-against-AdBlock-Plus-1897360.html . December 8, 2013.
  73. Web site: Adblock Plus denies ad fixing allegations . June 27, 2013 . . June 7, 2016 . https://web.archive.org/web/20160806093816/http://www.techeye.net/business/adblock-plus-denies-ad-fixing-allegations . August 6, 2016 . dead .
  74. Web site: Adblocking 'pretty unsavoury' business model, says Trinity Mirror chief . The Guardian . March 9, 2016 . Mark Sweney . March 9, 2016 . "They offer software for free [to consumers] and then come to us and say 'your site's OK so if you pay us we will ensure ads on your sites get through'. There is something extremely unhealthy about this business model." . March 9, 2016 . https://web.archive.org/web/20160309115130/http://www.theguardian.com/media/2016/mar/09/adblocking-business-model-trinity-mirror-guardian-media-group#comment-70244828 . live .
  75. Web site: AdBlock Plus teams up with Flattr to help readers pay publishers . TechCrunch . May 3, 2016 . April 5, 2017 . July 14, 2017 . https://web.archive.org/web/20170714231543/https://techcrunch.com/2016/05/03/adblock-plus-teams-up-with-flattr-to-help-readers-pay-publishers/ . live .
  76. Web site: The company behind Adblock Plus is acquiring micropayment service Flattr . TechCrunch . April 5, 2017 . AOL . April 5, 2017.
  77. Web site: Adblock Plus now sells ads . The Verge . September 13, 2016 . Vox Media . April 5, 2017 . April 6, 2017 . https://web.archive.org/web/20170406020827/http://www.theverge.com/2016/9/13/12890050/adblock-plus-now-sells-ads . live .

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