How To Install Extensions That Aren’t From The Official Chrome Web Store

How To Install Extensions That Aren’t From The Official Chrome Web Store

When trying to upgrade to the latest LastPass update from the LastPass website, I ran into an error that said extensions, apps and user scripts couldn’t be installed. If you ever run into a similar error, here’s how to work around it.

First, check if the extension is available for download from the Chrome Web Store. If it is, just install it from there. If not, here’s what to do:

  1. Instead of opening the extension you’d like to install directly, right-click the download link and select Save Link As to download the extension to your desktop.
  2. Open Chrome’s extensions page in your browser by pasting chrome://chrome/extensions/ into your address bar and pressing Enter.
  3. Drag and drop the extension you just downloaded into the Chrome extensions page.

You should be error free, and the extension should install as expected.

Chances are most of you haven’t experienced this error yet — it’s a security measure that Google added to Chrome’s dev and Canary channels (version 21 and above) to increase security for extensions that aren’t in the web store (requiring a second level of know-how to complete the installation). If you haven’t, chances are you may when the update pushes down to the beta and stable channels.

[via LifeReload Help]


  • Now that I “know how”, I can resume downloading and installing extensions from across the Internet without even looking at what I’m downloading, or what it’s doing to my browser or computer. It’s the computer’s duty to protect me, not my own. Like going to a nightclub and starting fights, because it’s the bouncers’ job to protect you, not your own!

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