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Why is Firefox showing these random characters in place for images?

Posted

I have removed all add ins and extensions. Cleared browser cache and cookies and did the 'refresh' button on firefox.com

http://imgur.com/a/U7p5C

I have removed all add ins and extensions. Cleared browser cache and cookies and did the 'refresh' button on firefox.com http://imgur.com/a/U7p5C

Additional System Details

Installed Plug-ins

  • Adobe® Acrobat® Plug-in for Web Browsers, Version 10.1.15
  • A plugin to detect whether the Adobe Extension Manager is installed on this machine.
  • Provides information about the default web browser
  • Displays Java applet content, or a placeholder if Java is not installed.
  • Shockwave Flash 19.0 r0
  • 5.1.40416.0
  • Universal Media Player

Application

  • Firefox 41.0.2
  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:41.0) Gecko/20100101 Firefox/41.0
  • Support URL: https://support.mozilla.org/1/firefox/41.0.2/Darwin/en-US/

Extensions

  • Adblock Plus 2.6.11 ({d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d})
  • Firebug 2.0.12 (firebug@software.joehewitt.com)
  • Web Developer 1.2.5.1-signed ({c45c406e-ab73-11d8-be73-000a95be3b12})
  • Adobe Acrobat - Create PDF 1.2 (web2pdfextension@web2pdf.adobedotcom) (Inactive)

Javascript

  • incrementalGCEnabled: True

Graphics

  • adapterDescription:
  • adapterDeviceID: 0x0166
  • adapterDrivers:
  • adapterRAM:
  • adapterVendorID: 0x8086
  • driverDate:
  • driverVersion:
  • info: {u'AzureCanvasBackend': u'skia', u'AzureFallbackCanvasBackend': u'none', u'AzureContentBackend': u'quartz', u'AzureSkiaAccelerated': 0}
  • numAcceleratedWindows: 1
  • numTotalWindows: 1
  • supportsHardwareH264: False
  • webglRenderer: Intel Inc. -- Intel HD Graphics 4000 OpenGL Engine
  • windowLayerManagerRemote: True
  • windowLayerManagerType: OpenGL

Modified Preferences

Misc

  • User JS: No
  • Accessibility: No
cor-el
  • Top 10 Contributor
  • Moderator
17422 solutions 157414 answers

Any difference in the response headers if you refresh the page and bypass the cache via Ctrl+F5?

Any difference in the response headers if you refresh the page and bypass the cache via Ctrl+F5?

Question owner

Creating a new profile had no effect.

Creating a new profile had no effect.

Question owner

Ctrl+F5 had no effect

Ctrl+F5 had no effect
cor-el
  • Top 10 Contributor
  • Moderator
17422 solutions 157414 answers

Do you have any security software running on your Mac?

You can also check the connection settings in Firefox.

  • Firefox > Preferences > Advanced > Network : Connection > Settings

See "Firefox connection settings":

Do you have any security software running on your Mac? You can also check the connection settings in Firefox. *Firefox > Preferences > Advanced > Network : Connection > Settings See "Firefox connection settings": *https://support.mozilla.org/kb/Firefox+cannot+load+websites+but+other+programs+can

Question owner

There is no security software running and there is no proxy, firewall configurations.

There is no security software running and there is no proxy, firewall configurations.
jscher2000
  • Top 10 Contributor
8638 solutions 70669 answers

Does the site work normally in Safari or Chrome?

Does the site work normally in Safari or Chrome?

Question owner

Yes. Under safari and chrome Netflix and other sites show as normal. I deleted FF and reinstalled. Same issue.

Yes. Under safari and chrome Netflix and other sites show as normal. I deleted FF and reinstalled. Same issue.
jscher2000
  • Top 10 Contributor
8638 solutions 70669 answers

Chrome's developer tools look a bit different, but if you use Inspect Element on the Netflix page there is a tab similar to Firefox's Network tab where you should be able to see whether Chrome is accessing the custom font file on the same path and whether it is getting the Access-Control header back from the server that Firefox is not showing.

I still can't think of any other reasons for the difference.

Chrome's developer tools look a bit different, but if you use Inspect Element on the Netflix page there is a tab similar to Firefox's Network tab where you should be able to see whether Chrome is accessing the custom font file on the same path and whether it is getting the Access-Control header back from the server that Firefox is not showing. I still can't think of any other reasons for the difference.

Question owner

It should be noted that I jumped back several versions of Firefox. Trying version 40, 39 and 38. All have the same issue. I made a big jump to 25 and everything rendered properly.

It should be noted that I jumped back several versions of Firefox. Trying version 40, 39 and 38. All have the same issue. I made a big jump to 25 and everything rendered properly.

Question owner

Problem exists from 31-41. But prior it doesn't

Problem exists from 31-41. But prior it doesn't

Question owner

Firefox Developer edition 43 works fine.

Firefox Developer edition 43 works fine.