I don't have any issues with that page.

Have you tried refreshing Firefox?

Hello,

The Refresh feature (called "Reset" in older Firefox versions) can fix many issues by restoring Firefox to its factory default state while saving your bookmarks, history, passwords, cookies, and other essential information.

Note: When you use this feature, you will lose any extensions, toolbar customizations, and some preferences. See the Refresh Firefox - reset add-ons and settings article for more information.

To Refresh Firefox:

1. Open the Troubleshooting Information page using one of these methods:
   • Click the menu button , click help and select Troubleshooting Information. A new tab containing your troubleshooting information should open.
   • If you're unable to access the Help menu, type about:support in your address bar to bring up the Troubleshooting Information page.
2. At the top right corner of the page, you should see a button that says "Refresh Firefox" ("Reset Firefox" in older Firefox versions). Click on it.
3. Firefox will close. After the refresh process is completed, Firefox will show a window with the information that is imported.
4. Click Finish and Firefox will reopen.

Did this fix the problem? Please report back to us!

Thank you.

I have not tried resetting Firefox as I do not want to loose my extensions, settings, etc.

I might try that after I get a chance to back every thing up cleanly.

You can open firefox in safe mode or an empty profile without disturbing your current setup to test.

We can probably close this issue.

I did some more checking and it looks like something is broken at my ISP or access point, as the same issue occurs for other users here with different browsers.

You can mark this thread as solved to close it.

While I was typing a very long post, the problem was solved.

Yay   !