Bing is taking over Firefox - auto starts on start, or grabs the home page if I start it - how do I stop this? Go to Safari?

Question

Every few months, Bing takes control of Firefox:
When I start the computer, Bing autostarts FF and then makes itself the home page.
If I quickly close FF - I am really upset about this Bing thing and will never use it, so I shut down the autostart FF - and then open FF myself, Bing will open as the home page.
When I check options Gmail is set as the home page. When I check bookmarks, there is nothing for Bing.
This is a pretty egregious MS malware program.
How do I stop this, and keep it from re-occurring? Note that I've already tried the resetting of FF, which means I must reinstall all extensions. That works but only for a few weeks. The Bing malware is back. How do I get rid of this, once and for all? Or could Mozilla have a legal chat with MS, since they are "grabbing" your software in the worst malware fashion.
I use an ASUS F502c. It came with Windows 8; I've upgraded that to 8.1
Thanks,
DMS

Answer 1

Hello,
You can check for malware and/ or reset Firefox to solve this issue:
You can try these free programs to scan for malware, which work with your existing antivirus software:
* [http://www.microsoft.com/security/scanner/default.aspx Microsoft Safety Scanner]
* [http://www.malwarebytes.org/products/malwarebytes_free/ MalwareBytes' Anti-Malware]
* [http://support.kaspersky.com/faq/?qid=208283363 TDSSKiller - AntiRootkit Utility]
* [http://www.surfright.nl/en/hitmanpro/ Hitman Pro]
* [http://www.eset.com/us/online-scanner/ ESET Online Scanner]
[http://windows.microsoft.com/MSE Microsoft Security Essentials] is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.
Further information can be found in the [[Troubleshoot Firefox issues caused by malware]] article.
The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. <br>
'''Note''': ''This will cause you to lose any Extensions and some Preferences.''
*Open websites will not be saved in Firefox versions lower than 25.
To Reset Firefox do the following:
#Go to Firefox > Help > Troubleshooting Information.
#Click the "Reset Firefox" button.
#Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
#Firefox will open with all factory defaults applied.
Further information can be found in the [[Reset Firefox – easily fix most problems]] article.
Did this fix your problems? Please report back to us!
Thank you.