I had no problem with the link.

Please explain the problem in detail. What happens? What is/are the exact error message(s) ?

Many site issues can be caused by corrupt cookies or cache.

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.

• Delete cookies to remove the information websites have stored on your computer {web link}

• How to clear the Firefox cache {web link}

If there is still a problem,

Start Firefox using Troubleshoot(Safe) Mode {web link}

A small dialog should appear. Click Start In Troubleshoot(Safe) Mode (not Refresh). Is the problem still there?

While you are in Troubleshoot(Safe) mode;

Try disabling graphics hardware acceleration in Firefox. Since this feature was added to Firefox it has gradually improved but there are still a few glitches.

How to disable Hardware Acceleration {web link}

I should have produced a screenshot. Here it is. There is no error message. It has only happened with 3 questions, others load fine.

If I try to use Troubleshoot Mode, Firefox crashes. I clear the cache every night. I could delete cookies and site data for the support site but that seems drastic.

In the address bar, type about:crashes<enter>. Note: If any reports do not have BP- in front of the numbers/letters, click it to submit them.

The crash report is several pages of data. We need the report numbers to see the whole report.

Using your mouse, mark the most recent 7 - 10 Submitted crash reports, and copy them. Now go to the reply box and paste them in.

Please, Do not post a screenshot ! !

For more help on crash reports, see; https://support.mozilla.org/en-US/kb/firefox-crashes-asking-support

Thanks. It is some days since I tried troubleshoot mode. The browser crashes routinely when I quit and also if I press the button to delete the start-up cache and restart. I have posted previously about the crashes.

I will probably post again because I have more information and, as I say, it crashes routinely when I quit or try to restart, which was not my original understanding of the problem.

Do you think I should delete cookies and site data for this site?

deleting cookies and site data will not hurt anything and could remove corrupt data.

And do post the crash reports.

I deleted cookies and site data and signed in again. I still can't see the question I linked at the outset.

I have posted separately about the crashing: https://support.mozilla.org/en-US/questions/1349327

You can check the Web Console (Tools -> Web Developer) for messages about blocked content and about the presence of mixed or unsafe content.

• https://developer.mozilla.org/en-US/docs/Tools/Web_Console

You can check the Network Monitor to see if content is blocked or otherwise fails to load.

• https://developer.mozilla.org/en-US/docs/Tools/Network_Monitor

If necessary use "Ctrl+F5" or "Ctrl+Shift+R" (Mac: Command+Shift+R) to reload the page and bypass the cache to generate a fresh log.

Thanks cor-el. I checked the console. A Greasemonkey script was causing the problem.