title: How to install Edge/Chrome extension offline? Not in DevMode
body: <p>The question is not about Developer Mode &quot;load unpacked&quot;. If the extension is loaded as unpacked then it shows additional popup on the normal browsers. Canary and Dev do not show this popup (used the extension for a while) but I have to use the build in Edge and regular Chrome.</p>
  <p>I want to install extension from local source or from my webpage(over HTTPS).
  I have the extension and can modify it (manifest, content script, etc.).
  I have complete control over the local machine. I can add registries, local policies and templates (not AD joined but MS account), change folders, hosts file, etc.
  I have already submited the extension to Google Web Store for review. It might  be delayed for a week or more, might fail review or both.</p>
  <p>I asked related question <a href="https://stackoverflow.com/questions/68238020/how-can-i-skip-manual-tests-for-a-private-chrome-extension">How can I skip manual tests for a private Chrome extension?</a></p>
  <p>So is there a working guide for installing extension in offline/corporate mode?</p>
  <p>The extension might be visible on the extension page but it should not show warnings and/or additional icons.</p>
  <p>Somehow I do not manage to understandand and successfully follow <a href="https://docs.microsoft.com/en-us/microsoft-edge/extensions-chromium/developer-guide/alternate-distribution-options" rel="nofollow noreferrer">Alternate extension distribution methods</a> or <a href="https://www.ibm.com/docs/en/aspera-connect/3.11?topic=a-deploying-connect-extensions-in-closed-environments" rel="nofollow noreferrer">Deploying Connect Extensions in Closed Environments</a> guides.</p>
  <p>Any help would be apriciated.</p>
  <p>p.s. Worst case scenario is to pack a lot of files in extension package and update it in large chunks. Current extension connects to web server and uses pictures and sounds from the server. On the fly speach generation is almost ready. Can not use the common browser/OS voices.</p>