CRX_FILE_NOT_READABLE error when attempting to install the 1Password extension in Chrome
The latest version of Chrome changed how extensions are installed, and sometimes during installation Chrome will report the error "Package is invalid: 'CRX_FILE_NOT_READABLE'".
Google is working on resolving these issues. In the meantime, there are some potential workarounds to get the installation working; here they are in order of simplicity:
1. Restart Chrome and then Download the Extension Manually
Try quitting Chrome, restarting, and then copy and paste the following link into Chrome's omnibar:
Please note that clicking a link to the extension in Chrome does not work as reliably as copying and pasting, so please be sure to copy and paste.
2. Download Using Safari
If you are still having trouble, let's try downloading the file from Safari and then installing it from your system rather than over the network.
- Open Safari (not Chrome).
- Click this link in Safari to download the CRX file.
- Open Chrome.
- Use the File > Open File menu within Chrome to open the CRX file you just downloaded and install it in Chrome.
3. Clean Up Your Downloads Folder
This Chrome issue states that this bug is caused by the download not properly being renamed. Thus it conflicts with older files in your Downloads folder. The workaround follows.
- In Chrome, select Window > Downloads from the menu bar
- Click the "Open downloads folder" link in the upper right of the downloads list. This will open a Finder window where you'll see all your downloads there.
- Delete all the 1Password extension files that you see listed in your Downloads folder in Finder.
- Try installing the extension again: https://agilebits.com/extensions/mac/index.html
If you're still having trouble, please ensure that you have a Downloads location set within Chrome's preferences. You'll need to click the "Show advanced settings" link at the bottom of Chrome's settings list to reveal the correct option:
Then set (or reset) the "Download location" to
/Users/yourusername/Downloads and try installing the
4. Rename the Extension File
In most cases one of the above steps will work around the issue, but in some stubborn cases, Chrome will continue to refuse the installation. Thankfully a commenter posted a workaround in the Chrome issue above:
After I move the CRX file to another folder, rename it to a random name like
usdfhasdfkjesd.crx, and drop it into Chrome, then I can install it without error.
To do this, download the extension (here's the link again) in Safari, open the downloads popover, and then click the magnifying glass to reveal the file in Finder, as shown here:
When Finder opens, the 1Password.crx file will be highlighted. Press and hold the Option key, and then click on the 1Password.crx file. This will highlight the 1Password part of the name, allowing you to rename it. Call it anything you like and then press the return key to complete the rename. Now drag and drop the newly named file onto an open Chrome window.
5. Cleaning up Chrome's Settings
This step is a big one and not for the faint of heart: a few users reported that nothing worked until they cleared out Chrome's settings files and started over. It appears some of their settings files were corrupted or incompatible with a new Chrome version.
You can try this by quitting Chrome then opening Finder, selecting the Go > Go to Folder menu, and entering this path:
You can then rename the Chrome folder (do not delete as all your bookmarks and other data are in this folder and you might decide you want them back someday). Now start Chrome and install the extension again.
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