Chrome

  1. Go to the Chrome menu and select Preferences.
  2. Select the tab Under the Hood.
  3. Under Privacy, click Content Settings.
  4. Select the JavaScript tab and choose the option Allow all sites to run JavaScript.
  5. Close the window.
  6. Refresh your browser, either by using the keyboard shortcut CMD + R / CTRL + F5 or by using the Reload button in the toolbar

Firefox

  1. Click the Tools drop-down menu and select Options.
  2. Select the Content section from the options at the top of the pop-up page.
  3. Check the boxes next to Block pop-up windows, Load images automatically, and Enable JavaScript. Click OK.
  4. Refresh your browser by right-clicking anywhere on the page and selecting Reload, or by using the Reload button in the toolbar.

Safari

  1. Select Safari from the Apple/System bar at the top of the screen.
  2. From the drop-down menu, select Preferences.
  3. Select the Security icon/tab at the top of the window.
  4. Check the Enable JavaScript checkbox under the Web content category.
  5. Close the dialog box to save your changes.
  6. Finally, refresh your browser.

Internet Explorer (Edge)

  1. From the Tools menu, select Internet Options.
  2. In Internet Options, click the Security tab.
  3. Click the globe labeled Internet, and then click Custom level.
  4. Scroll down to the "Scripting" section. Under Active Scripting, select Enable.
  5. Press OK and restart Internet Explorer.