*This is a repost from Mr. MacLean’s blog post*
If you encounter problems trying to view websites on the Mac using Firefox, you may need to change your settings as shown:
1. Select Preferences from the Firefox menu:
2. Click on the ‘Advanced’ tab at the top and then select the ‘Network’ Tab below it. Click on the ‘Settings’ button.
3. Ensure that your settings match the ones shown below (including the checked box)