hello, please try to reset firefox and see if this can address the issue...

Dear Philipp, I have reset, then uninstall - reinstall mozilla version 21 which according to website is the latest version but did not work. I still only see text even for mozilla website(attached). I do not encounter this issue with internet explorer.

Kind regards, Rianti

Reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.

• Hold down the Shift key and left-click the Reload button
• Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
• Press "Command + Shift + R" (Mac)

Clear the cache and the cookies from websites that cause problems.

"Clear the Cache":

• Firefox/Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"

"Remove Cookies" from sites causing problems:

• Firefox/Tools > Options > Privacy > Cookies: "Show Cookies"

Start Firefox in 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

Dear Cor-el, I have tried your advice, still did not work. Attached is what mozilla website looks like in safe mode after I disabled all add-ons extension and appearance. I have tried to upgrade to version 22 - still not working.

Kind regards, Rianti

Attached is my system info

 Application Basics

       Name
       Firefox

       Version
       22.0

       User Agent
       Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0

       Build Configuration

         about:buildconfig

 Extensions

       Name

       Version

       Enabled

       ID

       Skype Click to Call
       6.8.0.12323
       false
       {82AF8DCA-6DE9-405D-BD5E-43525BDAD38A}

       Smiley Bar for Facebook
       1.0.0.3
       false
       statuswinks@StatusWinks

       TelevisionFanatic
       1.1
       false
       64ffxtbr@TelevisionFanatic.com

 Important Modified Preferences

     Name

     Value

       browser.cache.disk.capacity
       358400

       browser.cache.disk.smart_size.first_run
       false

       browser.cache.disk.smart_size.use_old_max
       false

       browser.cache.disk.smart_size_cached_value
       358400

       browser.places.smartBookmarksVersion
       4

       browser.startup.homepage
       https://www.google.com.sg/

       browser.startup.homepage_override.buildID
       20130521223249

       browser.startup.homepage_override.mstone
       22.0

       dom.w3c_touch_events.expose
       false

       extensions.lastAppVersion
       22.0

       keyword.URL

       network.cookie.prefsMigrated
       true

       places.database.lastMaintenance
       1369747981

       places.history.expiration.transient_current_max_pages
       104858

       plugin.disable_full_page_plugin_for_types
       application/pdf

       plugin.importedState
       true

       privacy.sanitize.migrateFx3Prefs
       true

       privacy.sanitize.timeSpan
       0

 Graphics

       Adapter Description
       Mobile Intel(R) 4 Series Express Chipset Family

       Adapter Drivers
       igdumd64 igd10umd64 igdumdx32 igd10umd32

       Adapter RAM
       Unknown

       Device ID
       0x2a42

       Direct2D Enabled
       Blocked for your graphics driver version.

       DirectWrite Enabled
       false (6.2.9200.16492)

       Driver Date
       8-22-2009

       Driver Version
       8.15.11.8684

       GPU #2 Active
       false

       GPU Accelerated Windows
       0/1 Basic

       Vendor ID
       0x8086

       WebGL Renderer
       Google Inc. -- ANGLE (Mobile Intel(R) 4 Series Express Chipset Family)

       AzureCanvasBackend
       skia

       AzureContentBackend
       none

       AzureFallbackCanvasBackend
       cairo

 JavaScript

       Incremental GC
       true

 Accessibility

       Activated
       false

       Prevent Accessibility
       0

 Library Versions

       Expected minimum version

       Version in use

       NSPR
       4.9.6
       4.9.6

       NSS
       3.14.3.0 Basic ECC
       3.14.3.0 Basic ECC

       NSSSMIME
       3.14.3.0 Basic ECC
       3.14.3.0 Basic ECC

       NSSSSL
       3.14.3.0 Basic ECC
       3.14.3.0 Basic ECC

       NSSUTIL
       3.14.3.0
       3.14.3.0

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

A possible cause is security software (firewall,anti-virus) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.

See:

• https://support.mozilla.org/kb/Server+not+found
• https://support.mozilla.org/kb/Firewalls

Dear Cor-el, based on your advice I have reported this issue to my antivirus customer care ( bit defender ) . After turning off one of the setting ( scan SSL ), mozilla works normally again now. Thank you very much for your support and assistance. Kind regards Rianti