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Because the Lync Web App and Microsoft 365 are cloud-based technologies, they require interactive browser functionality. This functionality is provided, in part, by JavaScript. You might have to enable JavaScript within your browser in order to ensure that your features work as expected.

Instructions for enabling JavaScript vary by browser. Select your browser from the list to learn how.

  1. Click Tools > Internet Options.

  2. Click the Security tab > Custom Level.

  3. In the Scripting section, click Enable for Active Scripting.

  4. In the dialog box that displays, click Yes.

JavaScript is supported in the Microsoft Edge web browser. However, it might have been disabled in your browser by an administrative setting. If you encounter a JavaScript error in Edge:

  1. On the More menu (...), select Open with Internet Explorer.

  2. Then, follow the procedures for Internet Explorer.

  1. If you’re running Windows OS, in the Firefox window, click Tools > Options.

    Tip:  If you’re running Mac OS, click the Firefox drop-down list > Preferences.

  2. On the Content tab, click the Enable JavaScript check box.

  1. If you’re running Windows OS, click Tools > Preferences.

    Tip:  If you’re running Mac OS, from the Safari menu, click >Preferences.

  2. Click Preferences > Security tab.

  3. Click the Enable JavaScript check box.

  4. Click Close and refresh the browser.

If you received an error that says, This site requires use of scripts, which your browser does not currently allow, clear the web browser cache to delete history cookies, and any other website data.

  • Select Preferences > Privacy > Remove all web site data > Remove now.

  1. Click the wrench icon on the toolbar.

  2. Click Options > Under the Hood.

  3. In the Privacy section, click Content settings.

  4. Scroll to the JavaScript section and click Allow all sites to run JavaScript (recommended).

  5. Close the Options tab and refresh the browser.

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