Safari extension gone and deleted

Greetings @Goshmir,

The most likely cause for an extension disappearing from Safari after it has been installed is if the extension database has suffered some damage. We don't know the specifics but in almost all cases we've come across reseting the Safari Extension database resolves this although it does mean you will have to install of your extensions again (sorry). Here is how to reset the extension database.

Wiping Safari's extensions

To start make sure Safari is not opened.

Preference plist

1. Open a Finder window and use the keyboard shortcut ⇧⌘G to open a Go to the folder window.
2. Use the following location ~/Library/Preferences/com.apple.Safari.Extensions.plist and click the Go button.
3. Drag the highlighted file to your Trash.

Extension files

1. Like above, open a Finder window and use the keyboard shortcut ⇧⌘G to open a Go to the folder window.
2. Use the following location ~/Library/Safari/Extensions/ and click the Go button.
3. Drag the highlighted folder to your Trash.

Safari Extensions List

1. Launch Keychain Access which you can find in /Applications/Utilities/.
2. Search on the word safari and you should have 3 entries in the results.
3. You want to right click on Safari Extensions List and select the Delete "Safari Extensions List" option.

After all of that reboot your Mac and you'll need to go through the steps of installing your extensions again. With a little luck whatever got messed up was in there and the 1Password extension will now properly load

Let us know how you get along.

To answer your other query, we are aware of a blip affecting some users when they move to El Capitan but this is quite specific and easy to correct. As far as 1Password goes, we're unaware of any El Capitan specific bugs that affect the running of 1Password. The blip I mentioned is to do with 1Password being quarantined and the quarantine flag not being properly removed. For a bit more on this, this recent thread should prove informative. We don't expect any major problems for our users :smile:

Awesome! Thanks for the update. On behalf of lil bobby, you're most welcome! It sounds like you should be all set, but we're here if you need anything else! :)