Start your Computer in safe mode with network support. Then start Firefox. Try Safe websites. Is the problem still there?

http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode Starting Any Computer In Safe Mode; Free Online Encyclopedia

Hi FredMcD

in safe mode, Firefox is working fine. At that time, acrobat reader got automatically updated, my antivirus (NetProtector) got updated, so I deleted acrobat completely but still in normal mode, Firefox is still white.

Thanks for replying.

Neeta

As a test, disable your protection programs. Is the problem still there?

Hi FredMcD

I disabled my antivirus and windows firewall too but still Firefox is white.

Thanks for replying Neeta

You may have ad/mal-ware. Further information can be found in this article; https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware?cache=no

Run most or all of the listed malware scanners. Each works differently. If one program misses something, another may pick it up.

Hi FredMcD,

Ran all the malware scanners mentioned in the link you had posted in safe mode. Found a few Potentially unwanted and a few critical and harmful things which were removed and Microsoft defender found a hack which was removed but the problem is as is. Seems a complete format is the only solution.

Thanks for the help.

Neeta

Before doing that, please ask your question here;

https://support.microsoft.com

http://answers.microsoft.com/en-US/windows/forum/windows_10

Include the link back to this page; https://support.mozilla.org/en-US/questions/1207056

Please keep us posted

Hi Fred McD

Got no answers on Microsoft forum.

But my antivirus support uninstalled the latest Firefox on my system and installed an older version (49) and Firefox has started working perfectly well though Chrome is yet black screen and IE is still not displaying images and games.

Thanks. Neeta

If you want to try this;

Many have reported issues using the 64bit Firefox. Install the 32bit version from; Download Firefox For All languages And Systems {web link}

Do a malware check with several malware scanning programs on the Windows computer.

• https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware

Please scan with all programs because each program detects different malware. All these programs have free versions.

Make sure you update each program to get the latest version of their databases before doing a scan.

• Malwarebytes' Anti-Malware:
  http://www.malwarebytes.org/mbam.php
• AdwCleaner:
  http://www.bleepingcomputer.com/download/adwcleaner/
  http://www.softpedia.com/get/Antivirus/Removal-Tools/AdwCleaner.shtml
• SuperAntispyware:
  http://www.superantispyware.com/
• Microsoft Safety Scanner:
  https://www.microsoft.com/security/scanner/en-us/default.aspx
• Windows Defender:
  https://windows.microsoft.com/en-us/windows/using-defender
• Spybot Search & Destroy:
  http://www.safer-networking.org/en/index.html
• Kasperky Free Security Scan:
  https://www.kaspersky.com/security-scan

You can also do a check for a rootkit infection with TDSSKiller.

• Anti-rootkit utility TDSSKiller:
  https://support.kaspersky.com/viruses/disinfection/5350

https://support.kaspersky.com/viruses/utility

See also:

• "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

Hi Fred McD

I will try the 32-bit and see what happens. Will keep you posted.

Thanks Neeta