It's not just an image, it's an image in a framed document where the iframe src is on an FTP server. So the issue is that for some reason the framed document is not loading for you at all.

I can't think of a reason for Firefox not to load the framed document.

Have you noticed issues with frames on other sites?

Have you saved a login for this FTP server in Firefox's saved passwords? You can check for (and delete) those here:

orange Firefox button (or Tools menu) > Options > Security > "Saved Passwords" button

Actually, I could well be wrong that the framed document is not loading for you.

If you right-click in the document area > This Frame > Open frame in new tab, does that make any difference in whether the image displays?

Does Ctrl+Shift+r in that new tab make any difference?

I don't think it is a password issue. On the other "test" computers, it is a brand new firefox install and I am not logged into the NI site and the page still displays correctly.

Right-click in the area >this frame> Open frame in new tab I get an Alert dialog box with message "550 That is not a directory".

Thanks.

... but yes, I deleted any password even remotely related to any NI site. None of them were for ftp.

If the new tab opens, do you notice any problems with the path in the URL bar, especially strange characters?

If the new tab doesn't open, if you copy the path from right-click > This Frame > View Frame Info, does it vary from this:

ftp://ftp.ni.com/pub/devzone/tut/mca_navigation1.html

Sorry, yes the tab open before getting the Alert dialog, with the following in the url bar: ftp://ftp.ni.com/pub/devzone/tut/mca_navigation1.html/

Looks to be the same.

It's the same except there should not be a slash at the end, because the document name is not a directory name. I wonder what is causing that???

Yes, but if I remove the slash, and hit enter it does go to the ftp page, but then the url bar has a slash again. If you look at the source in a browser (IE) that works, the iframe url does not have the slash at the end. Also the page source at the location of the image says the following but yet still displays correctly : [Your user agent does not support frames or is currently configured not to display frames. However, you may visit <a href="ftp://ftp.ni.com/pub/devzone/tut/mca_navigation1.html">the related document.]" Also, if I click on the image itself and click view source, it shows that the image is an html map.

You can remove all data stored in Firefox from a specific domain via "Forget About This Site" in the right-click context menu of an history entry ("History > Show All History" or "View > Sidebar > History") or via the about:permissions page.

Using "Forget About This Site" will remove all data stored in Firefox from that domain like bookmarks, cookies, passwords, cache, history, and exceptions, so be cautious and if you have a password or other data from that domain that you do not want to lose then make a note of those passwords and bookmarks.

You can't recover from this 'forget' unless you have a backup of the affected files.

It doesn't have any lasting effect, so if you revisit such a 'forgotten' website then data from that website will be saved once again.

Thanks cor-el & jscher2000 for your input. I have lots and lots of bookmarks to that site. I don't want to loose them all. I sometimes use the history too. Cookies and cache I have tried clearing. I have also created a new profile as well as performed a firefox reset. Remember also, if I create a new profile visit the page, it displays correctly the first time. It may be totally unrelated. IDK.

You may only need to remove data from the ftp.ni.com domain.

Does this still happen if you open this file from the containing directory?

• ftp://ftp.ni.com/pub/devzone/tut/

The link ftp://ftp.ni.com/pub/devzone/tut/ opens fine when pasted in the url box. Also, when the image is not being display, the box contains "Index of ftp://ftp.ni.com/pub/devzone/tut/mca_navigation1.html/" then a link below it that says "Up to higher level directory" and with that same link. When I click on that the same box that should contain the image now "becomes" an ftp folder browser.

I did the forget about this site on the ftp.ni.com. Reloaded the page with Ctrl-F5. Still does not display correctly.

Wouldn't all this be cleared when starting fresh with a new profile and/or reset anyways?

You can try to create a new profile as a test to check if your current profile is causing the problems.

See "Creating a profile":

• https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles
• http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues

If the new profile works then you can transfer some files from an existing profile to the new profile, but be careful not to copy corrupted files.

• http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

cor-el: already tried that. See initial posting. Creating a new profile, the first time I visit the site it displays correctly. Refresh then the page is never displayed correctly again.

Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen) as a test to see if that helps.

Having trouble with boot to safe mode. After windows login screen displays it reboots itself. Tried Flashed something about a profile the first time but have not seen the message again... in issue for another day.

An interesting thing: Created a new firefox profile. Launched into it. History is empty as expected. Visit the site 1st time, displayed fine. Visit 2nd time, does not display correctly. Clear the history by selecting the site in history and clicking forget about this site. Visit the site again - now displays fine.... but only the first time when it has no history. Odd

Does clearing the cache has this same effect?

Oops. I did a windows safe mode boot.... Firefox -safe-mode behave exactly like normal mode with my default profile. Regarding my interesting observation above with the new profile: Clearing the cache has no effect, i.e. the page is not displayed correctly the second time. Another note, simply clearing the history does not "fix" the issue. Only if I click "forget about this site" will the page display correctly the first time after doing so. What does "forget about this site" do that deleting the history entry does not? Remember, that this a brand new clean profile, with nothing else in the history, or cache for that matter. Thanks again.

Clarification: I tested the same "forget about this site" (on ftp.ni.com) in my default profile. This has not effect, i.e. the page is still never displayed correctly. Forget about this site only "fixes" the issue with my new, test profile.

Now my second test computer with brand new firefox install is exhibiting the same problem. Doing a "forget about this site" does not remedy the problem, ie. it will no longer display the page correctly.