TL;DRChrome has removed the workarounds that allowed users to install Manifest V2 extensions such as uBlock Origin.uBlock Origin is no longer available to install from the Chrome Web Store.Chromium-based browsers can choose to support MV2 extensions, but it remains to be seen whether they will continue doing so in the long run.A few years ago, Chrome started working towards deprecating Manifest V2 in favor of Manifest V3. This meant that extensions such as uBlock Origin would no longer work on Chrome and Chromium-based browsers. However, there were still workarounds that you could use to install such extensions, including using Chrome flags. Now, those methods are going away as well.The Google Chrome team has started removing flags that allowed the use of MV2, and let users install extensions that depended on it. Chrome developer Devlin Cronin posted a commit to the Chromium project that removes the “kExtensionManifestV2Disabled feature” (via Neowin).