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This extension brings the following functionality to ungoogled-chromium (and other forks that lack web store support):

  • Allows installing extensions directly from chrome web store.
  • Automatically checks for updates to your installed extensions and displays them on the badge. Example Image

Read this first

  • If you are using ungoogled-chromium: You must change the flag chrome://flags/#extension-mime-request-handling to Always prompt for install.
  • If you are NOT using ungoogled-chromium: Ensure the following option is checked: Extension Options (chrome://extensions/?options=ocaahdebbfolfmndjeplogmgcagdmblk) > Advanced > Always download CRX files
  • If you are seeing CRX_REQUIRED_PROOF_MISSING or Apps, extensions and user scripts cannot be added from this website errors, please be sure you have followed the instructions above before opening an issue.
  • Some extensions may not update until you restart your browser, see #4.


  • Pin the Chromium Web Store badge in your browser's toolbar. (Badges are hidden by default)
  • The badge will show a red number indicating available updates.
  • Click on the badge, then click the name of any extension to install the latest version.
  • This method will work for non-webstore extensions as well if they support it, including chromium web store itself. (See the section at the bottom of this readme if you are an extension developer and don't have your extension listed in the chrome web store.)


  1. Go to chrome://extensions and enable developer mode (toggle in top right).
  2. Download the .crx from Releases and drag-and-drop it onto the chrome://extensions page.

If drag-and-dropping does not work, try this workaround:

  1. Download the .crx from releases and extract the contents to a folder.
  2. Visit chrome://extensions/ and turn on developer mode (toggle in top right).
  3. Click Load unpacked and select the directory you extracted the crx to.

Setup Video

here [Streamable Mirror] (Thanks @woolyss for creating & hosting this video.)

Options Notes

  • Right click the badge and choose Options from the context menu or access them via chrome://extensions.
  • "Web Store" extensions refer to any that were obtained from the Chrome Web Store, despite displaying Source: Not from Chrome Web Store when checking extension details.
  • Please read the note in Release 1.4 if you wish to use the import/export feature.

If you wish to help with localization, follow these steps:

  1. Create a directory in _locales named any supported locale code.
  2. Copy _locales/en/messages.json to your newly created directory and edit the "message" fields as necessary, you don't need to change anything else.
  3. Submit a PR or open an issue with your translation and I will merge it.

If you are a chrome extension developer...

and do not have your extension listed in the Chrome Web Store, you can still enable updates via chromium-web-store by hosting an update manifest file; see updates.xml in this repo for an example. You must also specify a url to access this file in your extension's manifest.json under the update_url field; again, see manifest.json in this repo for an example.

For deployment

See #28 and managed_storage.json