Editing Ad blocking (section)

===Monetary===
Ad blocking reduces page load time and saves bandwidth for the users. Users who pay for total transferred bandwidth ("capped" or pay-for-usage connections), including most mobile users worldwide, have a direct financial benefit from filtering an ad before it is loaded. Using an ad blocker is a common method of improving internet speeds.<ref>{{Cite web|date=2018-07-16|title=37 Ways To Improve Internet Speed – How To Stop Buffering|url=https://broadbandsavvy.com/how-to-improve-internet-speed/|access-date=2020-11-23|website=Broadband Savvy|language=en-US|archive-date=3 December 2020|archive-url=https://web.archive.org/web/20201203185233/https://broadbandsavvy.com/how-to-improve-internet-speed/|url-status=live}}</ref> Analysis of the 200 most popular news sites (as ranked by [[Alexa Internet|Alexa]]) in 2015 showed that [[Firefox|Mozilla Firefox]] Tracking Protection led to a 39% reduction in data usage and a 44% median reduction in page load time.<ref>{{cite journal |last1=Kontaxis |first1=Georgios |last2=Chew |first2=Monica |date=2015 |title=Tracking Protection in Firefox For Privacy and Performance |url=https://www.ieee-security.org/TC/SPW2015/W2SP/papers/W2SP_2015_submission_32.pdf |journal=IEEE Computer Society's Technical Committee on Security and Privacy |arxiv=1506.04104 |access-date=23 March 2019 |archive-date=13 June 2019 |archive-url=https://web.archive.org/web/20190613095324/http://www.ieee-security.org/TC/SPW2015/W2SP/papers/W2SP_2015_submission_32.pdf |url-status=live }}</ref> According to research performed by ''[[The New York Times]]'', ad blockers reduced data consumption and sped upload time by more than half on 50 news sites, including ''The New York Times'' itself. Journalists concluded that "visiting the home page of Boston.com (the site with most ad data in the study) every day for a month would cost the equivalent of about $9.50 in data usage just for the ads".<ref>{{cite web |url=https://www.nytimes.com/interactive/2015/10/01/business/cost-of-mobile-ads.html?_r=1 |title=The Cost of Mobile Ads on 50 News Websites |last1=Aisch |first1=Gregor |last2=Andrews |first2=Wilson |last3=Keller |first3=Josh |date=1 October 2015 |website=[[The New York Times]] |access-date=23 March 2019 |archive-date=3 April 2019 |archive-url=https://web.archive.org/web/20190403190225/https://www.nytimes.com/interactive/2015/10/01/business/cost-of-mobile-ads.html?_r=1 |url-status=live }}</ref>

It is a known problem with most web browsers, including [[Mozilla Firefox|Firefox]], that restoring sessions often plays multiple embedded ads at once.<ref>{{cite web |url=https://support.mozilla.org/en-US/questions/860098 |title=Upon startup multiple audio sources begin playing. I can't find the tab to kill them! |publisher=Support.mozilla.org |date=10 August 2011 |access-date=23 March 2019 |archive-date=29 October 2013 |archive-url=https://web.archive.org/web/20131029191857/http://support.mozilla.org/en-US/questions/860098 |url-status=live }}</ref> However, this annoyance can easily be averted simply by setting the web browser to clear all cookies and [[Web browsing history|browsing-history]] information each time the browser software is closed.{{Citation needed|date=April 2023}} Another preventive option is to use a script blocker, which enables the user to disable all scripts and then to selectively re-enable certain scripts as desired, in order to determine the role of each script.{{Citation needed|date=April 2023}} The user thus can very quickly learn which scripts are truly necessary (from the standpoint of webpage functionality) and consequently which sources of scripts are undesirable, and this insight is helpful in visiting other websites in general.{{Citation needed|date=April 2023}} Thus by precisely controlling which scripts are run in each webpage viewed, the user retains full control over what happens on their computer CPU and computer screen.{{Citation needed|date=April 2023}}