Somehow search engine site is called "V9.com" fix itself as my homepage and tabpage. I have tried many things to change it including spyware or malware programs. There are lots of people suffer same problem, many of them share solutions however there solution did NOT work for me. I tried to change firefox.exe properties or changing exe file. Did NOT work. So!! Help me Firefox Community!!!
It sounds like you have a Third-Party Toolbar that has taken over your Search Engine, Home Page, and/or the Default New Tab Page. Fortunately this can be remedied easily:
After Firefox restarts, install the Search Reset Tool. This will remove the rest of the traces of this program from your Firefox.
For further information, please read Remove a toolbar that has taken over your Firefox search or home page.
Does this help your question? Let us know!
Did this start after any updates or new installations? Often "free" software is actually adware supported software which bundles in unwanted extras.
 The first place to check is your Extensions. Disable ALL extensions, and only spare the ones so vital that you'd rather watch TV than browse the internet without them. The restart Firefox.
orange Firefox button or classic Tools menu > Add-ons > Extensions category
 Next, reset your home page as desired here:
orange Firefox button or classic Tools menu > Options > General
 Third, you can reset your "new tab" page in a slightly more complicated way.
(A) In a new tab, type or paste about:config in the address bar and press Enter. Click the button promising to be careful.
(B) In the filter box, type or paste newtab and pause while the list is filtered
(C) Double-click the browser.newtab.url preference and enter the desired value:
(i) Page thumbnails (default)
browser.newtab.url = about:newtab
(ii) Blank tab
browser.newtab.url = about:blank
(iii) Built-in Firefox home page
browser.newtab.url = about:home
(iv) Any other page
browser.newtab.url = full URL to the page
 While you're in about:config, type or paste v9 into the filter box and zap any settings where it doesn't belong by right-clicking and choosing Reset.
 Finally, you can check for a user.js file which might revert your settings.
Help > Troubleshooting Information > "Show Folder" button
If you find a user.js file in that folder, it contains custom settings that could override your changes. Unless you set them up yourself, you probably don't need them, so just rename the file to something like userjs.old or baduser.js (etc.).
Alternately, you could open the file in a text editor and see what's in there and edit it manually.
Hopefully that will shut it down. If the changes do come back after that, then your malware/spyware scanner probably missed some external software.
First of all thaks for your help effort. Unfourtunately my problem standing!
Dear timc, it seems that I misinformed you about my porblem. I should have underline the situation. My problem is not "search engine toolbar" problem. It is not an add(-on) either. But yes, it came with free software.
Dear jscher2000, I've tried everytihng you said. Not not definetly not the solution.
I really am greatful for your attepmts, but I need new ideas. Any other ideas.
Hi lomex, I need more feedback on the results of those steps.
First, the home page. When you viewed your setting, was it what you wanted or had it been changed? If it was already correct or if you changed it to the correct setting, then clicked the Home button, was your setting ignored?
If you are using the built-in Firefox home page (about:home), what parts have been changed -- the whole page or just the destination of the search box?
Second, the new tab page. If you press Ctrl+t to open a new tab, do you get a different page than what you specified in about:config? What page did you specify and what page do you get?
Try to reset v9.com related prefs on the about:config page.
Dear friends, First of all Thanks for your efforts. I have already saved my homepage. It was textbook rescue. Homepage can be restore by using options-setting. Tabs are my problem. jscher2000 taught me to use about:config page. I wrote newtabs on that page's filter however everything was ordinary. I have searched for V9, search engine appeared. And then I have reset its settings. But my problem still standing.
When I press Ctrl+t to open a new tab, link below as a new page:
So any new ideas!
Again thanks for your efforts.
Do a malware check with some malware scanning programs on the Windows computer.
You need to scan with all programs because each program detects different malware.
Make sure that you update each program to get the latest version of their databases before doing a scan.
You can also do a check for a rootkit infection with TDSSKiller.
I have used all these methods and programs. Nope, not working. It seems that it is not a malware-software... anyware.
Do a clean reinstall and delete the Firefox program folder before reinstalling a fresh copy of Firefox.
Download a fresh Firefox copy and save the file to the desktop.
Uninstall your current Firefox version, if possible, to cleanup the Windows registry and settings in security software.
Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.
Your bookmarks and other profile data are stored in the Firefox Profile Folder and won't be affected by an uninstall and (re)install, but make sure that "remove personal data" is NOT selected when you uninstall Firefox.
If you keep having problems then also create a new profile.