Chromium: Difference between revisions

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'''Chromium''' is a [[wikipedia:Free_and_open-source_software|free and open-source]] [[:Category:Web browsers|web browser]] developed by and primarily maintained by [[Google]].<ref name=":0">{{Cite web |date= |title=Chromium |url=https://www.chromium.org/Home/ |url-status=live |access-date=2025-08-12 |website=The Chromium Projects}}</ref> Several major web browsers use Chromium as the base of their software, including [[Google Chrome]],<ref name=":0" /> [[Microsoft Edge]],<ref>{{Cite web |date=2019-05-06 |title=10 cool things to check out at Microsoft Build 2019 |url=https://blogs.microsoft.com/blog/2019/05/06/10-cool-things-to-check-out-at-microsoft-build-2019/ |url-status=live |access-date=2025-08-14 |website=blogs.microsoft.com}}</ref> [[Opera]]/[[Opera GX]],<ref>{{Cite web |date=2013-08-27 |title=Today, Opera 15 has been updated to Opera 16 |url=https://blogs.opera.com/news/2013/08/today-opera-15-has-been-updated-to-opera-16/ |url-status=live |access-date=2025-08-14 |website=blogs.opera.com}}</ref> [[Brave browser|Brave]],<ref>{{Cite web |date=2025-08-14 |title=Brave - Homepage |url=https://brave.com/ |url-status=live |access-date=2025-08-14 |website=brave.com}}</ref> and others.

Manifest V3 is an update to the manifest structure used by browser extensions across the majority of the browser market, presented as an upgrade in security, privacy, and performance of these extensions.<ref>{{Cite web |last=Li |first=David |title=Resuming the transition to Manifest V3 |url=https://developer.chrome.com/blog/resuming-the-transition-to-mv3 |url-status=live |access-date=24 Mar 2025 |website=Chrome for developers}}</ref><ref>{{Cite web |date=12 Sep 2024 |title=Overview and timelines for migrating to Manifest V3 |url=https://learn.microsoft.com/en-us/microsoft-edge/extensions-chromium/developer-guide/manifest-v3 |url-status=live |access-date=24 Mar 2025 |website=[[Microsoft]]}}</ref> The changes restrict the access browser extensions can have, thereby enhancing security by preventing them from loading remote resources immediately or significantly altering rendered content. These limitations effectively render the browser market's most effective ad-blockers ineffective.<ref>{{Cite web |last=Siddiqui |first=Aamir |date=17 Nov 2023 |title=Google's Manifest V3 changes will soon disable uBlock Origin on Chrome |url=https://www.androidauthority.com/google-chrome-manifest-v3-changes-3386506/ |url-status=live |access-date=24 Mar 2025 |website=Android Authority}}</ref> Despite the developers' efforts to bypass the issue using workarounds and updated versions of Manifest V3, the software's previous efficiency has not been fully restored. For example, blocked domains cannot be updated as conveniently.<ref>{{Cite web |last=Buria |first=Taras |date=3 Aug 2024 |title=uBlock Origin developer recommends switching to uBlock Lite as Chrome flags the extension |url=https://www.neowin.net/news/ublock-origin-developer-recommends-switching-to-ublock-lite-as-chrome-flags-the-extension/ |url-status=live |access-date=24 Mar 2025 |website=Neowin}}</ref> This manifest change is supported by leading Chromium-based browsers, making it challenging for other browsers to match previous ad-blocking capabilities without committing to retaining Manifest V2 (such as Firefox, which also utilizes Chromium-sourced manifests) or implementing their own ad-blocking solutions of varying<ref>{{Cite web |last=Sullivan |first=Edward |date=13 Mar 2024 |title=Manifest V3 & Manifest V2 (March 2024 update) |url=https://blog.mozilla.org/addons/2024/03/13/manifest-v3-manifest-v2-march-2024-update/ |url-status=live |access-date=24 Mar 2025 |website=[[Mozilla]]}}</ref>) or utilizing their own ad-blocking solutions<ref>{{Cite web |date=27 Jun 2024 |title=What Manifest V3 means for Brave Shields and the use of extensions in the Brave browser |url=https://brave.com/blog/brave-shields-manifest-v3/ |url-status=live |access-date=24 Mar 2025 |website=[[Brave]]}}</ref> of varied effectiveness.<ref>{{Cite web |date=17 Jun 2024 |title=Manifest v3 update: Vivaldi is future-proofed with its built-in functionality |url=https://vivaldi.com/blog/manifest-v3-update-vivaldi-is-future-proofed-with-its-built-in-functionality/ |url-status=live |access-date=24 Mar 2025 |website=[[Vivaldi]]}}</ref><!-- Citations support controversies of Google, Google Chrome, and other third-party companies/products. I suggest this be a part of those articles, and not Chromium.  -->

Chromium's code is published under the 3-clause BSD license.<ref>{{Cite web |title=LICENSE |url=https://chromium.googlesource.com/chromium/src/+/master/LICENSE |url-status=live |access-date=2025-08-12 |website=Google Git}}</ref>