How to debug image not loading intermittently exclusively on Firefox?

The image (GIF67) is being generated and sent via binary stream from the server (using secure connection), Explorer and Chrome always display the image, Firefox intermittently fails to load it with no distinct success-fail pattern.
I have verified that this is a Firefox issue, by analyzing the tcp packages and confirmed that the response from the server is always the same at bytes level either on the success as the fail scenario.
How could I setup Firefox to log the render process of the image requested?
Actions taken:
-Tested with Firefox versions from 10 to 28, fails
-Tested with Chrome and IE, image always renders correctly
-Followed:
https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can?esab=a&as=aaq
https://support.mozilla.org/en-US/kb/fix-problems-images-not-show?esab=a&as=aaq
-Modified Chrome and IE request headers to mimic the Firefox request, image renders correctly
-Modified Firefox headers to mimic Chrome request, fails
-Analyzed tcp packages, response is the same for fail and successful render
-Reconstructed the image correctly by recovering the tcp packages from the requests of a successful rendering as well as for a bad rendering.
Sometimes it is possible to make 50 requests and see the image being displayed correctly, some other times you could make 50 requests and not see the image displayed, but mostly it is possible to load the image 20 times and have 1 fail.
Thanks in advance!

Hey,
So you mentioned that it is only for one image, does this also happen for an image with the same (gif67) type? Please also make sure Firefox is up to date and if it continues to happen in the latest version please see below :-)
<blockquote>-Modified Chrome and IE request headers to mimic the Firefox request, image renders correctly</blockquote>
Where? You modified the packet from the server? or the response given to Firefox and rendered it in another browser
<blockquote>Analyzed tcp packages, response is the same for fail and successful render </blockquote>
Please give an example.
1 out of 20 times it fails, do you know if this is consistent on a different network or computer? Also, the format of the gif what kind of encoding? With this information and some good steps to consistently reproduce a bug in [bugzilla.mozilla.org] will help us investigate this as well.
Thank you

Similar Messages

Images not loading when I visit a website. I I get is a blank box with a question mark in it. How do I fix this?

Images not loading on my browser in Safari or Google Chrome or Firefox when I visit a website. How do I fix this?

Can you run EtreCheck and post the report here please?
EtreCheck: https://discussions.apple.com/docs/DOC-6173

HELP! Images not loading and Firefox taskbar icon is a white file.

I went through all the suggestions in the image not loading help page and same with the add ins and nothing helping. The images load fine on Google Chrome so I know it's not the site. It might just be Adobe Flash images, but that's as far as I know how to pinpoint.
As far as the task bar goes, it's just a while file icon instead of the Firefox one. It doesn't bother me, but I just thought it might be related.
I'd appreciate any help! Anybody! Thanks,
Stef

What do you see if you right-click the area where such a missing image should be?
Is that a context menu for images with "View Image Info"?
Are there any icons on the location bar that plugins are used or mixed content is blocked?
If images are missing then check that you do not block images from some domains.
*Press the F10 key or tap the Alt key to bring up the hidden Menu bar.
Check the permissions for the domain in the currently selected tab in "Tools > Page Info > Permissions"
Check "Tools > Page Info > Media" for blocked images
*Select the first image link and use the cursor Down key to scroll through the list.
*If an image in the list is grayed and "<i>Block Images from...</i>" has a checkmark then remove this checkmark to unblock images from this domain.
Make sure that you do not block (third-party) images, the <b>permissions.default.image</b> pref on the <b>about:config</b> page should be 1.
Make sure that you haven't enabled a High Contrast theme in the Windows/Mac Accessibility settings.
Make sure that you allow pages to choose their own colors.
*Tools > Options > Content : Fonts & Colors > Colors : [X] "Allow pages to choose their own colors, instead of my selections above"
Note that these settings affect background images.
See also:
*http://kb.mozillazine.org/Website_colors_are_wrong
There are extensions like Adblock Plus (Firefox/Tools > Add-ons > Extensions) and security software (firewall, anti-virus) that can block images and other content.
See also:
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
*http://kb.mozillazine.org/Images_or_animations_do_not_load
*http://kb.mozillazine.org/Websites_look_wrong

My home page is not loaded after I started firefox again.

When I filled in my home page in the tools option menu. This is not loaded after I shut firefox down and started again. Just the http://search.imesh.com/ is loaded and not my home page.

Running FF 18, lots of my add ons no good with 20 on PC.
Thanks

FireFox images not loading in local folders (firebug error-Failed to load given URL)

I am having difficulty when developing websites in local folders (Windows7 computer). The webpages I make are showing images in IE9 & Chrome but not FireFox (nor Safari nor Opera).
In FireFox I get Firebug "Failed to load given URL" prompt.
I am using html5 & external linked css stylesheet & the html/html5 & css code validates.
I have tried using rel path ie images/image.gif & absolute path references ie C:/RPD_Programming/RPD WEB/amwcsnew/index.html
and have tried using % to eliminate whitespace in references but I cannot get FireFox to display images!!
This has been a problem for me for around 2 weeks now & is very frustrating. Some website code/templates I have downloaded from the internet display the websites properly (ie load images fine) when I open them locally in FireFox. Why does my code not allow the images to load in FireFox (paths/permissions/other issue??). How can I fix this?
Here is example css & html5 not displaying images from local directory in FireFox (fine in IE9 & Chrome):
style.css
/* CSS Document */
/*Basic Reset*/
margin:0;
padding:0;
html{
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
display: block;
body{
width:1200px;
margin:0 auto;
header{
height:450px;
background:url("C:/RPD_Programming/RPD WEB/amwcsnew/images/header.gif");
background-repeat:no-repeat;
#mid{height:750px;
background:url('C:/RPD_Programming/RPD_WEB/amwcsnew/images/mid.gif')no-repeat;
footer{height:286px;
background:url('C:/RPD_Programming/RPD WEB/amwcsnew/images/footer.gif')no-repeat;
index.html
<!doctype html>



<html lang="en" class="no-js">
<head>

<meta charset="utf-8">
<title>amwcs-new</title>
<meta name="description" content="amwcs">
<meta name="author" content="rpd">


<link rel="shortcut icon" href="/favicon.ico">

<link rel="apple-touch-icon" href="/apple-touch-icon.png">



<link rel="stylesheet" href="css/style.css?v=2">


<script src="js/modernizr-1.6.min.js"></script>


</head>


<body>




<header>

<hgroup>
<h1>amwcs</h1>
<h2>tagline</h2>
</hgroup>

<nav>
<ul>
<li><a href="#">Home</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Services</a></li>
<li><a href="#">Contact</a></li>
</ul>
</nav>
</header>

<div id="mid">

<section class="hs1">


<p>Some content...</p>

<h2>Demonstrating EM and STRONG</h2>

<p><strong>This text will have more importance (SEO-wise and contextually)</strong></p>

<p><b>This text has visual importance but has no contextual or SEO importance</b></p>

<p>This is a <em>very</em> colloquial expression.</p>


</section>

<section class="hs2">
<h1>This is another section</h1>
<p>This is some dummy content</p>
</section>
</div>



<footer >
<p>copyright © year</p>
</footer>


<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
<script>!window.jQuery && document.write(unescape('%3Cscript src="js/jquery-1.4.4.min.js"%3E%3C/script%3E'))</script>


<script src="js/general.js"></script>


<script>
var _gaq = [['_setAccount', 'UA-XXXXX-X'], ['_trackPageview']];
(function(d, t) {
var g = d.createElement(t),
s = d.getElementsByTagName(t)[0];
g.async = true;
g.src = ('https:' == location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
s.parentNode.insertBefore(g, s);
})(document, 'script');
</script>
</body>
</html>
I am most grateful for help & look forward to replies & fixing this-thanks
NB
Is there a FireFox guide/manual in pdf format available anywhere? I have not found one yet & a FireFox reference might be useful!

You need to use file:// as the protocol instead of C:/. The latter may never work (C:\ might).
Where is the main HTML located ?
Easiest if to store the images in a sub folder of the location because you can't go back via ../ beyond that root location for security reasons.
See:
*http://kb.mozillazine.org/Links_to_local_pages_do_not_work

Images not Loading in Firefox

I've got some trouble with loading images since flex 3 (and still with flex4).
In my app I've got several Image tags meant to display jpeg files as follows:
<mx:Image x="594" y="40" width="400" height="250" id="img_preview" horizontalAlign="center" autoLoad="false" />
These images are supposed to load an url on runtime which I get from a dataset by means of an rpc:
img_preview.load( thumbURL );
Now the problem is that this works just fine on locally - but when I put the release build (or the debug-build) onto the web,
I just get the missing image icon. This problem so far seems only to occur in firefox, since for example safari or ie working with
the exact same file just as intendet.
Ignoring the fact everything works everywhere else I checked the image urls, response headers for the images when loaded
directly and so on - but found no errors.
The images urls are absolute from the same domain as the flash movie and an appropriate crossdomain file exists for other
reasons as well.
Searching a little further by means of wireshark and firebug I found the flashplayer not opening any connections to the
server, allthough I'm not quite sure if it's my inability to find the connection or the flashplayer who just want's to bug me to death.
Any help would be greatly appreciated since I already lost SO MUCH TIME on this..

Hi pvijeh, is that the explanation for a security error? I'm having trouble understanding the context.

How to prevent images from loading?

I am working on creating a web gallery in Dreamweaver CS3. The thumbnails are in a horizontal strip within a layer above the full sized image layer, in other words the strip is hiding part of the image, but only when the image is in a vertical orientation. (the strip has no background, so all that is visible are the actual thumbnails) Upon clicking show/hide text , in a toggle configuration, the strip fades, or shows. On my computer it works perfectly. However, once uploaded, it takes forever to load the images.
The problem: Although I have the thumbnail images are set to preload, all of the full size images are loading as well, which takes alot of time. Is there a way to prevent the full sized images from loading, i.e. only when the thumbnail is clicked?
Frames, in which one frame is thumbnails, and another the is images, is what I normally would use, and have a page for each image. However, for what I have in mind, it will not work (transparency on parts of one frame above another is as far as I can tell not possible).
So how do I prevent images from loading until called for? regards~bill-o

t would help if you posted a link to the page, but I can guess that you have properly diagnosed the cause - the page is encumbered with the weight of all of the full-sized images.
The only way to not have this happen would be to dynamically write the link to the full sized-images on demand, as it were. In other words, the link ISN'T EVEN ON THE PAGE until you have clicked on the corresponding thumbnail, and only at that point is the weight of that image experienced. One easy way to do this is to use the SetText of Container behavior that is part of DW's native arsenal of behaviors. When the thumb is clicked, the SetText behavior is called to write the image link into the enlarged image's container. Need to see a demo? Look here -
http://dreamweaverresources.com/tutorials/settextoflayer.htm
The behavior is called "Set Text of Container", and using it will meet all of your requirements.
To use it, you will have to have the following:
1. A page with a 'container' which is to receive the enlarged image - this could be a table cell, a paragraph tag, a div, or even a span tag.
2. That container will have to be identified with an ID attribute and a valid value, e.g., <div id="enlargedImage">.
3. A dummy page containing each enlarged image, placed sequentially on the page.
To implement the effect, do the following:
1. Open the dummy page in Code view, and select the first image's tag, e.g., <img src="images/foo.jpg" width="123" height="256" alt="whatever" /> (XHTML syntax shown here).
2. Switch to the actual page, select a thumb that will 'open' this enlarged image, and enter "javascript:;" (that's colon semicolon) in the 'Link' field of the Property inspector to make this thumbnail image a null link.
3. Apply the Set Text of Container behavior.
4. Paste the clipboard into the dialog for the behavior, and click OK to close the dialog.
5. Examine the Behavior panel to see which mouse event has been defaulted - probably 'onclick'. If you would rather have this be 'onmouseover' use the Behavior panel Event selector (the dark triangle to the right of the event name) to select 'onmouseover'.
5. Repeat from #1 above until all thumbs have been treated.
Let us know if this does not make sense

Some images not loading on web pages

Using my laptop which Has Windows 7, some images are not loading on every web page, for example the header bar with the fox is not displayed on the firefox home page. I can't log out of my online banking as the yes or no boxes are not displayed. The problem also occurs on IE8. I have tried all the suggestions on the help pages. Iam running the same antivirus on my desktop so it's not the problem. The desktop is Windows XP, so I think it must be something in Windows 7

Try the sites from another User Account. If you need guidance for establishing a new account, here it is:
Here is guidance from Apple on how to set up the account. You can ignore step 7 in the article.
Also, on the system preference>Accounts panel, click on "log-in" options. There, select "fast user switching". This allows you to go back and forth between user accounts via an icon in your Menu Bar at the top of the computer screen.
Log-on to the new account and start Safari. If the sites are accessible in the new account, then your problem is specific to your regular user account. Otherwise, similar response means a system-wide problem.
If you find them accessible in the new user account, go back to your regular user account and
- move the Safari Cache file to the trash (found in your User Library>Caches folder). Restart Safari.
- If no go, then I'd go to the Safari preferences>Security>Cookies and "remove" the related cookies, trying the site again.
- If no go, quit Safari, then move the cookies.plist file found in the same library>Cookies folder to the desktop, again restarting Safari. If no go here, put this file back in its original location.
Post back with results.

Images not loading after I transfer them to the server.

There is some hidden code that only shows up on the remote server that I am transferring my files to that is causing my images to not load on the page. I tried to cut and paste the code in here but it will not show up. If you go to www.cheyennetrailriders.com and view the source code you will see little squares in front of images/084.jpg". Does anyone know how to get rid of this code?
The images load fine in dreamweaver and preview mode on my machine, problem only happens when I transfer everything to the remote server.
</style></head>
<body>
<div id="wrapper">
<p><img src="images/banner2.gif" width="860" height="124" alt="Cheyenne Trailriders" />
</p>
<h2>Experience and Learn of our Native Culture as you ride... In the Heart of the Northern Cheyenne Foothills.</h2>
<p><img src="images/084.jpg" alt="rider1" width="348" height="229" align="left" class="photoLeft" />On the Northern Cheyenne Indian Reservation - Ashland, Montana</p>
<p> The brown hills edged with pine trees seem to stretch for miles as we horseback ride across the Cheyenne Indian Reservation, Montana. When we pause to rest in the shade of a tree, Leo Spang, a Native ethnobotanist, finds mint-scented man sage and explains how it's used for smudging (purifying) in sweat lodges. He picks western yarrow for us, telling us to rub the yellow flowers between our fingers. The plant releases a camphor-like smell. Mixed with leaves, yarrow is used to stop blood oozing from a wound.</p>
<p>Back at Zane and Sandra Spangs' house, Leo's relatives, Jay Old Mouse, a flutemaker for the Cheyenne people, comes to play. His tunes are rich and haunting in the night air. Old Mouse is typical of the artists, elders and craftspeople who share their traditions with guests at Cheyenne Trailriders. "I want people to know that we are real and that we live in two worlds," says Old Mouse. "We have to provide and work - I'm a carpenter by trade - but we hang onto our traditions." </p>
<p>The music makes us feel connected to the surrounding hills. We carry the tunes with us as we fall asleep on the earthen floor of our tipi. Cheyenne Trailriders designs custom trips. For an overnight ride including horse fee, lodging in a tent or tipi, guide, and six meals, the cost is $250 per adult. The ethnobotany course on the trail is an additional $75 per person. Ask about family prices. The minimum age for horseback rides is 8-years-old. </p>
<p><img src="images/line1.gif" width="860" height="15" alt="line1" /></p>
<h3>Call or email now to arrange your custom trail ride!</h3>
<p>Details: P.O. Box 206, Ashland, MT 59003</p>
<p> Phone: 406/784-6150. </p>
<p> Email: [email protected]</p>
<p> </p>
</div>
</body>
</html>

Hi
The images are now loading for me, (on second visit).
It was being caused by the accessibility checker extension in FF, when I disabled then re-enabled it they worked, (close page first).
PZ

Images NOT loading on my MacBook Pro?

Recently images stopped loading on my macbook pro. Not every site, but random or certain places. For example, when I do an image search on Shutterstock, it works fine, when I search on Thinkstock I get nothing but question marks. I have also had problems in Mail, Entourage, gmail, etc. I can't think of anything different in the past week that would have caused it. I've installed CS 5.5, but I am pretty sure this started before that.
Happens in any browser too, Safari, Firefox, Chrome, Rockmelt. I cleared caches, I also tried deleting Safari plist and starting over. Nothing is working.

Try this: add Google's DNS servers to your list of DNS entries:
This document discusses how to do it:
http://support.apple.com/kb/TS3408
Hope this helps - it is really strange....
BTW, what happens under a new user account?
If the problem persists, it might be an internet plugin causing the issue. To figure out which one, take a look at this document: http://support.apple.com/kb/ts3230
The plugins would affect all browsers.

Please help - Images not loading in Safari

I've been a Mac user for about 7 years now, and I'm stumped. Literally overnight Safari started acting up... and now no images on webpages will load. The pages load fast per usual, and all the text is there. Other than the images not appearing everything else appears normal. I've run Cocktail, done system checks, ran Tech Tool - pretty much everything i can think of without calling Apple Care. Does anyone have any ideas as to what the problem might be and how I can fix it?
Thanks very much for your time and help! I really appreciate it, and would love to get this solved - it's driving me nuts!
Powerbook G4 Mac OS X (10.4.4)

safari > preferences > appearance > is "display images when page opens" checked? if not .. check it

Email images not loading on iPad and iPhone 4

Images are not loading in certain emails on both my iPad and iPhone 4 over wifi. They're showing up as blue boxes with a white question mark inside. Also in the iPad app store, certain app icons are showing as whited out. If i shut off wifi on the phone, the images will load in the emails through 3g. Does anyone have any idea what would cause these issues and how to correct the problem?

Who is your ISP?
I had similar problems with both my iphone and ipad when using my wifi, but not when using cellular. Turned out to be a Comcast issue with their implementation of DNSSEC validation. You can see my full explanation on my blog at http://blog.trif.com/?p=295. The site is being blocked by Comcast because the Microsoft portal does not meet DNSSEC validation rules. This applies to Comcast DNS Servers 75.75.75.75 and 75.75.75.76.

LR images not loading in PS editor

I have PS on my internal H drive and LR on my C drive. In LR, when I export an image to PS the Photoshop program comes up but the image does not load. I just moved my PS to the H drive to save room on my ssd C drive.

Separate subject:
What do you mean by "moved" Photoshop? ?? !!
Short of first deactivating your Photoshop install on your C: drive, then uninstalling Photoshop, then installing Photoshop anywhere else from scratch (from the original medium) and activating it, you are guaranteed to make an awful mess of the installation.
Still, post #1 applies anyway.

Images not loading at run-time

See website uaesocial.joolo.com
The images are not loading... I've verified the path. The
images show when I'm working on the project offline but when I
upload it, it doesn't show... path is on the same domain, e.g.
assets/pictures/pic1.jpg
I tried using SWFLoader instead of Image and it still won't
work.
Any ideas?!

have you tried changing your links and putting the images in
the same directory as your flex file. as this maybe the
flash-players sandbox issue.

Images not loaded correctly

<i>Locking duplicate thread.<br>Please continue here: [[/questions/1056930]]</i>
Dear reader,
Since a week my firefox experiences strange image loading behavior. The problem is seen on various pages, in particular when there are more images/pictures shown (e.g. youtube). The problem does not happen with other browsers.
The problem is this: All images are shown, but the images are mixed up. For example, images A,B,C,D should have been loaded. Instead images B,B,E,E,E are shown. When I hover over the images, the correct images are loaded. See attached picture: The top row is just after loading. The bottom row is shown after I have hover all images.
As you can image, this is extremely annoying. I have to read the text and/or hover all images to make a choice or understand what an item is all about.
I have tried the following with no success:
- Cleared cache
- Cleared all (cookies, history, cache, etc.)
- Refreshed my profile
- Created new profile
- Reinstalled firefox
- Disabled all add-ons
The only thing that I haven't done, but which could solve the problem is updating my video card drivers. I have an old card (NVIDIA GeForce GTX 275). The reason that I don't upgrade is that new NVIDIA drives cause (hard reset) crashes all the time. Also, any other browser works normally.
Thanks for any tips/advice you might give me.
Regards,
Eyestolks.

Now with attached image that you can load...

How to debug image not loading intermittently exclusively on Firefox?

Similar Messages

Maybe you are looking for