Hi, sorry you are having problems, but it isn't Firefox's fault. It is likely to be malware that has got in. So please work through this article and hopefully you can resolve the issue.

Hi ajag, Sorry you are having problems, but probably some adware or malware.

Thanks for including System Information. I am not familiar with "Vonteera Free Ads" However it is apparently adware. Take care with advice followed from internet searches I would for instance NOT try the YAC site or tool.

Using the Firefox addons manager and the Windows Control Panel remove any obvious unwanted toolbars or programs. Then scan with multiple and fully up to date tools.

• General method: Remove a toolbar that has taken over your Firefox search or home page

Please follow the advice in the link immediately above and then do the full scans as mentioned lower down in this post. I note you have a user.js file that may need attention separately. Post back saying what you tried and what the results were.

You can try these free programs to scan for malware, which work with your existing antivirus software:

• Microsoft Safety Scanner
• MalwareBytes' Anti-Malware
• Anti-Rootkit Utility - TDSSKiller
• AdwCleaner (for more info, see this alternate AdwCleaner download page)
• Hitman Pro
• ESET Online Scanner

Microsoft Security Essentials is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one. Windows 8 has antivirus built-in already.

Further information can be found in the Troubleshoot Firefox issues caused by malware article.

thanks alot for your quick and prompt response, this is the mozilla i like :)

i have already started the suggested procedures for fixing this, and as you stated, i can see some silly adwares in my installed programs

am working on fixing the issues

thanks again for your quick kind response

ajag said

hi, why the hell there are adds every where now? it was not the case earlier? and why the hell every time i change the home page to be the default one, the min i restart Firefox it came again to the same silly page i don't know from where the hell it came from?!?! it was a very pleasant experience to use Firefox, but not anymore, i like it even its heavy on the machine and stuck alot lately!!! the crash reports NEVER managed to be sent i don't know why!! come on guys, you can do better than that!