Parts of the system rely on pop-ups in order to launch related features and third party systems (such as online tests). 

Chrome:

1. On your computer, open Chrome.
2. Click on the three vertical dots in the top right-hand side of the browser toolbar. 
3. Click Settings.
4. At the bottom, click Show advanced settings.
5. Under Privacy, click Content settings.
6. Under Pop-ups, select the option Allow all sites to show pop-ups.

Safari:

1. From the Safari menu, choose Preferences.
2. Click on the Security tab.
3. Ensure that the Block pop-up windows option is NOT checked.

Internet Explorer:

1. Open Internet Explorer.
2. Go to the web page that you want to allow pop-ups.
3. From the Tools menu (the gear icon on the far right of the browser toolbar), select Internet options. 
4. Click on the Privacy tab.
5. Under Pop-up Blocker ensure that the Turn on Pop-up Blocker checkbox is NOT checked.
6. Click Apply.

Edge:

1. Click on the icon with three horizontal dots in the upper-right hand corner of the browser toolbar.
2. Click on Settings.
3. In the Advanced settings section, click on View advanced settings.
4. In the Block pop-ups section, click the switch to Off.

Firefox:

1. Open Mozilla Firefox.
2. Go to the web page that you want to allow pop-ups.
3. Click on the icon with three horizontal dots in the upper-right hand corner of the browser toolbar.
4. Select Options (Windows) or Preferences (OS X).
5. In the left sidebar, click on the Content icon.
6. In the Pop-ups section, ensure that the Block pop-up windows checkbox is NOT checked.