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How do I install the Lean Library browser extension on Safari?
How do I install the Lean Library browser extension on Safari?

This article describes how to install the Lean Library browser extension for Safari on macOS 10.15 or later

Daniel Horvath avatar
Written by Daniel Horvath
Updated over a week ago


Please visit for an up-to-date download link, which will take you to the App Store. Install the application, like any other app.

Installation & selection of your institution

After installing the application, please open it and click the "Quit and Open Safari Settings..." button. This is the only time that you need to open the application.

Ensure to activate the check box next to Lean Library and click on the "Always allow on Every Website..." button.

This will now open another verification window. Please click on the "Always allow on Every Website..." option.

You can now close Safari Preferences and click the Lean Library icon, which was added to the Safari toolbar. You'll find it either to the left or right of the address bar, as highlighted in the below screenshot. Please click the settings icon on the popup.

This will now open the side tray to select your institute. Please type thename of your institute in teh highlighted area and select the correct institute.

If your institution has enabled bilingual pop-up settings, you can also select your preferred language here too. Please check the other settings below to customise your experince with Lean Library.

You're all set now!

How do I change settings later?

Identify the Lean Library extension icon in your toolbar and click on it (on any website) and then select the gear icon.

How to disable or uninstall

Open Safari Preferences by clicking on Safari > Settings or press the cmd / ⌘ and , (comma) key at the same time, while Safari is active.

From the toolbar, select Extensions and then the Lean Library extension

Run into any trouble?

Please contact us at and provide us with the version of macOS (click on  and then select About This Mac) and the version of Safari (click on Safari > About Safari), plus a screenshot that could show the problem you've run into.

How to take a screenshot:
Take a screenshot and annotate it - press ⌘+⇧+5 (cmd + shift + 5) and then take the screenshot you want. The screenshot will show in the bottom right of your screen - click to annotate!

⌘+⇧+4 = Select area or  press space for a window
⌘+⇧+3 = Entire screen


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