Preview Thumbnails on New Tab page empty only for certain URLs

When I open a new tab, there are three certain preview thumbnails which are always empty, and there is no way I can make them show up again. They did work in the beginning, but at some time the three previews vanished and never came back.
I have already tried to empy the cache and reload the sites as suggested here, but the thumbs are still empty. It's always the same three URLs where this happens. I have also cleared the history, opened the sites again and dragged the items from the history menu into a thumbnail - same result.

The pages may be send by the server with a no-cache or no-store header preventing Firefox to store that pages in the cache. 
Firefox will only generate thumbnails if the page is in the cache.
*https://support.mozilla.org/kb/thumbnails-on-new-tab-page-are-missing
The thumbnails on the about:newtab page are generated from the cache, so if the page is not in the cache or otherwise can't or won't (secure pages) be rendered as a PNG image then you will get an empty box.
*Do not use Clear Recent History to clear data like the cache and the history when you close Firefox
If there is no history then you get an about:newtab page with empty boxes (no URLs).
*[https://bugzilla.mozilla.org/show_bug.cgi?id=756881 bug 756881] - New tab thumbnails not displayed (or old images displayed) for Facebook, Twitter (sites using Cache-Control no-store)

Similar Messages

My new tab page displays only an empty grid. Missing thumbnails -and- sites. I -think- my settings are correct. Please advise.

My new tab page displays only an empty grid. Missing thumbnails -and- sites. I -think- my settings are correct. Please advise.

What are the settings for clearing history when Firefox closes?
Make sure that you do not clear the Browsing Cache as that will remove the thumbnails that are stored in it.

How to enable Client Cert Required, only for certain URL's in the webserver

WE are using netegrity siteminder for authentication and their plugin is executed as AuthTrans function. If I enable clientauth in server.xml ( which is basically turning on the client cert required for entire site), everything works fine. But If I want to turn that on only for certain URL's how do I do that.
I tried turning global clientauth off in server.xml and tried using PathCehck fn"get-client-cert" in obj.conf for the URL's that need client cert, but the problem is AuthTrans is getting executed first and my netegrity plugin is throwing an error saying it cann't find the cert.
What are diffrent options to enable cert required only for certian URL's.
Thanks

What is the condition you want to match?
You can use get-client-cert in If tags in Web Server 7.0 :
For e.g. If the condition is matched, This gets a cert, requesting it if it is not already present and failing the request if it can't obtain an acceptable cert only on POST requests.
<If $url ~="*abc*>
PathCheck fn="get-client-cert" method="POST" dorequest="1" require="1"
</If>
or
<Object ppath="*abc*">
PathCheck fn="get-client-cert" dorequest="1" require="1"
<Object>
for more details :
http://docs.sun.com/app/docs/doc/819-2630/6n4thbiek?a=view#indexterm-380

Thumbnails in New Tab Page are not resizing

Hey,
Since the latest update (33.0.2), the thumbnails for the websites on the 'New Tab Page' do not resize when the window is resized, so I cannot see all the thumbnails unless the window is full screen. It used to be that if I dragged the corner of the window to make it smaller or larger, the thumbnails would resize so I could always see all of them. I'm always multi-tasking and never have the browser full screen so it is a bit annoying.
Any help would be appreciated, thanks
Windows 7 Ultimate 64bit
FireFox 33.0.2

Thanks for the reply Cory.
The issue that jscher2000 had is basically the same problem I'm having, but rather than just making all the thumbnails permanently smaller, I would like to restore the previous functionality that would resize them as needed. It always worked great until just a few days ago when I installed the latest update.
Using jscher2000's solution would help, but not completely fix it... I can use that solution if that's the only thing I can do, but I would much rather get the previous method back.
Thanks again, I would love to hear if anyone thinks they have the fix.

No blank thumbnails on new tab page

Page is completely blank.

Does it help if you open the about:newtab page directly?
Are there any (empty) slots on the about:newtab page?
If the page is blank and there is a (possibly faint) grid icon in the top right corner then click that icon in case the new tab page is hidden (pref browser.newtabpage.enabled = true).
Start Firefox in [[Safe Mode|Safe Mode]] to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
*Do NOT click the Reset button on the Safe mode start window or otherwise make changes.
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

New tab page was fine for MONTHS, had an image I uploaded. Today, I got a 'safe' mode whatever, and my image is gone. How do I restore it, so my image comes up?

I had set up my new tab page with an image I uploaded. It worked fine for months, if not years.
Today, I got a 'crash' that asked me to start Firefox in 'safe' mode or 'restore'. I chose 'restore'.
Thereupon, my image was gone from my new tab page. I cannot find how to restore it, and add ons that supposedly allow me to add my own image are not helpful. At least, I cannot figure them out.
Can you provide help on a computer for dummies level?

Sounds that you have reset Firefox and created a new profile.
You can try to create a new profile or reset Firefox.
*https://support.mozilla.org/kb/Managing+profiles
*https://support.mozilla.org/kb/reset-firefox-easily-fix-most-problems
When you reset Firefox then a new profile is created and some personal data (bookmarks, history, cookies, passwords, form data) is automatically imported and the current profile folder will be moved to the desktop to an "Old Firefox Data" folder. 
Installed extensions and other customizations (toolbars, prefs) that you have made are lost and need to be redone.
It is possible to recover more data from the old profile, but be cautious not to copy corrupted files to avoid carrying over the problem.
*https://support.mozilla.org/kb/Recovering+important+data+from+an+old+profile
You can try to restore the prefs.js file and copy this file from the "Old Firefox Data" folder on the desktop shortcut to the current Firefox program folder.
You can use this button to go to the Firefox profile folder:
*Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)

Uncontrolled tab openings? Can't see a pattern. Allowed to run once, but stopped with 80+ new tabs/pages. Only stop by closing down my FireFox[ver 3.6.13] and starting over. Searched here uncontrolled tab openings but nothing found. Thank you.

Happens when seeking to forward something, email something etc. Then it is just one additional tab after another, until I select right top corner to close FireFox.

See:
* [[Firefox keeps opening many tabs or windows]]

I have tried for new tab page, also done the process from about:config n all, i successfully got the newtab but once i restart firefox i get blank newtab

i have tried for new tab page, also done the process from about:config n all, i successfully got the newtab but once i restart firefox i get blank newtab not the most visited sites type new tab... plz help

In case you are using "Clear history when Firefox closes":
*do not clear the Cache because Firefox will disable the disk cache in such a case
*do not clear the Browsing History
*Tools > Options > Privacy > Firefox will: "Use custom settings for history": [X] "Clear history when Firefox closes" > Settings
*https://support.mozilla.org/kb/Clear+Recent+History
See also:
*https://support.mozilla.org/kb/thumbnails-on-new-tab-page-are-missing
The thumbnails on the about:newtab page are generated from the cache, so if the page is not in the cache or otherwise can't or won't (secure pages) be rendered as a PNG image then you will get an empty box.
*Do not use Clear Recent History to clear data like the cache and the history when you close Firefox
If there is no history then you get an about:newtab page with empty boxes (no URLs).

Just upgraded to FF 13 and not seeing site conent on new tab page

I upgraded from FF 9 or 10 to 13. I have not been able to see any site content on my new page tab. Ive cleared my cache restarted in safe mode and disabled all extensions and add-ons. Im still able to see content. Im only able to see the boxes where the content would be and the urls. Click on them works but without content showing the page is slow to use.
I followed the steps here but it didnt help.
https://support.mozilla.org/en-US/kb/thumbnails-on-new-tab-page-are-missing?e=es&as=aaq

hello, sorry the i misread your first post - i thought even no pages show up. the thumbnails will also only work at the moment when disk cache is enabled (from your submitted system details it appears it is not) - please allow firefox to use at least a small amount of cache on the harddrive in preferences > advanced > network & restart the browser, then the thumbnails should regenerate when you visit the pages afterwards.
edit: in case the above does not work, enter '''about:config''' into the location bar of the browser, search for the preference named '''browser.cache.disk.enable''' and toggle it to true by double-clicking on it...

Website images in New Tab page are gone (except for one). I followed the Help directions to restore them. Nothing happened. They are still gone.

All but one of the images on the 'new tab' page are gone. I followed the FFox Help directions exactly & repeatedly. Nothing happened. The images are still gone. Restarting the computer did not help either.
I have Windows Seven.

*https://support.mozilla.org/kb/thumbnails-on-new-tab-page-are-missing
The thumbnails on the about:newtab page are generated from the cache, so if the page is not in the cache or otherwise can't or won't (secure pages) be rendered as a PNG image then you will get an empty box.
*Do not use Clear Recent History to clear data like the cache and the history when you close Firefox
If there is no history then you get an about:newtab page with empty boxes (no URLs).

New Tab Page FAILS!

The Thumbnails on the "New Tab" page are not being rendered. I've visited each site frequently, so I know that they are in the "history" / "cache." Yet this still do not appear in the "New Tab" page.
Firefox has certainly failed on this!!!

Do you at least see empty slots with the URL below them?
Does it help if you drag a site that you've visited in one of the slots?
The thumbnails on the about:newtab page are generated from the cache, so if the page is not in the cache or otherwise can't be rendered as a PNG image then you will get an empty box. 
Do not use Clear Recent History to clear data when you close Firefox. 
If there is no history then you get an about:newtab page with empty boxes.

Firefox 13's new tab page appears blank, just like in older versions. Why?

After my beta install upgraded from 12 to 13 yesterday, the new tab page was working as advertised. When I started my computer today, however, the new tab page appeared blank, just as it did in older versions of Firefox. What happened? Any idea how to fix it?

The thumbnails on the about:newtab page are generated from the cache, so if the page is not in the cache or otherwise can't be rendered as a PNG image then you will get an empty box. 
Do not use Clear Recent History to clear data when you close Firefox. 
If there is no history then you get an about:newtab page with empty boxes.
*https://support.mozilla.org/kb/new-tab-page-show-hide-and-customize-top-sites
*https://support.mozilla.org/kb/thumbnails-on-new-tab-page-are-missing

New tabs page looks broken

After upgrading Firefox, the new feature New Tab page never looked correct. Not sure what could be the problem, but it bugs me.
http://ScrnSht.com/gngjvr

See:
*https://support.mozilla.org/kb/new-tab-page-show-hide-and-customize-top-sites
*https://support.mozilla.org/kb/thumbnails-on-new-tab-page-are-missing
The thumbnails on the about:newtab page are generated from the cache, so if the page is not in the cache or otherwise can't be rendered as a PNG image then you will get an empty box. 
Do not use Clear Recent History to clear data when you close Firefox. 
If there is no history then you get an about:newtab page with empty boxes.

My New Tab Page does not work at all. I just have the empty squares with nothing in them at all?

My New Tab Page does not work at all. I just have the empty squares with nothing in them at all?
I know how to use about:config & have had the usual problems with newtab page tiles but this is more like a bug- using 33.0.1. Doesn't show tiles icon in top right corner just shows a gear that is used to hide the empty tiles that I can't fill with sites. First it would only show 2 rows of 4 columns even though I had it set to 5 & 6 then few days later for no reason they went empty with a serrated line around the tiles & can't drag from the bookmarks---- really bloody annoying!!!!!!! Possibly a setting in the about:config but i can't fig it out?

Reset Firefox to its default state
If you're having major problems which you can't resolve, start fresh with only your essential information.
Troubleshooting Information
This page contains technical information that might be useful when you're trying to solve a problem. If you are looking for answers to common questions about Firefox, check out our support website.
Application Basics
Name Firefox
Version 33.0.1
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New Tab Page - thumbnails are not using the files from cache folder, but they want a connection to their origin website.

Hi there,
each time I visit a website, FireFox saves a thumbnail of all these sites for the "New Tab Page". Those thumbnails are cached in the 'thumbnails' Folder . That's so far ok for me.
The problem is:
Every time if I use the "New Tab Page" (...after shutdown & reopening the browser and only with 'mousehoover' on any thumbnail) all the thumbnails on that page don't use the cached thumbnails from the local profile folder.
This means:
Instead of using the cached thumbnail-files all(!) these thumbnails dials to their origin websites without(!) a mouseclick on any of these thumbnails (...see jpg pictures) !
I'm using the "Clear history when Firefox closes" with the following options:
privacy.clearOnShutdown.cache - true
privacy.clearOnShutdown.cookies - true
privacy.clearOnShutdown.downloads - false
privacy.clearOnShutdown.formdata - true
privacy.clearOnShutdown.history - false(!)
privacy.clearOnShutdown.offlineApps - false
privacy.clearOnShutdown.passwords - true
privacy.clearOnShutdown.sessions - true
privacy.clearOnShutdown.siteSettings - false(!)
So, i can't believe that this homedialing of pinned and unpinned thumbnails should be a normal function.
1. Screenshot: thumbnails in the New Tab Page
2. Screenshot: the same thumbnails in the Cache Folder "thumbnails" (...also they are there after shutdown of Firefox)
3. Screenshot: Dialing to the origin websites (...after restart of Firefox)
The Browser Version is Firefox ESR 31.2.0 and in the installation are no Add-ons, which are - for example - prefetching linked websites.
I would like to use the "New Tab Page" without 'homedialing', so the question is:
How can I force the thumbnails to use the cached thumbnail-files ?
or
How can i disable the 'loading of content from their origin websites' already on mousehoover ?

There is a preload pref available that you could try to disable on the about:config page.
*browser.newtab.preload = false
You can open the about:config page via the location/address bar.
You can accept the warning and click "I'll be careful" to continue.
*http://kb.mozillazine.org/about:config

Preview Thumbnails on New Tab page empty only for certain URLs

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