Downloading Safari Extension…
The 1Password extension for Safari should start downloading within a few seconds. If it doesn't, please click here or try these alternate locations:
Click the Downloads toolbar icon to open the Downloads window and double click the 1Password extension, as shown here:
Alternatively, you can double click this file in the Downloads folder within Finder or from your Dock.
Safari will ask if you want to install this extension, as shown here:
Select the Install button.
If the 1Password icon does not appear on the toolbar, click the Safari > Preferences menu, select the Extensions tab, and verify that Extensions are enabled.