Hi jirothankyou, that sounds like an add-on installed itself without your consent. You can try to remove the add-ons that might cause problems from the add-on manager. The process is explained here. If that doesn't work, or you never installed add-ons, or you want to have a quick fix: just reset Firefox. This will remove all add-ons and set Firefox to factory defaults, but it will keep your history, bookmarks, passwords etc. Here is a description of how to do that: Refresh Firefox - reset add-ons and settings.

Let me know please if that helped.

thank you KadirTopal, there isnt Isearch.claro in add-ons list.but reset firefox is good solution. now there is no Isearch.claro in my computer, thankyou again.

Glad to hear that :) Enjoy using Firefox!

Hi, KadirTopal.

Please kindly advice how to reset Firefox to factory default without resetting also the Bookmark database ?

Thanks in advance

Hi tetramailbox, just follow the link, reseting Firefox will automatically preserve your bookmarks.

Yes, it works and it also preserve the Bookmarks, and I have to install the add-ons again. Thanks

Hi Kadir Topal. Is there another way to remove the "Isearch.claro" when the page opens up, just by editing in the "keyword.url" ? I try it before by editing it but the value in "keyword.url" always back again to "Isearch.claro"

If you do not keep changes after a restart then see:

• http://kb.mozillazine.org/Preferences_not_saved
• https://support.mozilla.org/kb/Preferences+are+not+saved

See also:

• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

Hello, I did try your solutions, but it's sadly not working. Here my new thread about this problem: https://support.mozilla.org/en-US/questions/934720

I hope you can help me, I've tried everything... T_T In advance, thank you!

For anyone else who still gets an unwanted page when opening a new tab, even after removing or disabling unwanted toolbars or other extensions from the Add-ons Manager:

Before using the Reset Firefox option, you could try the SearchReset add-on to reset Firefox preferences for your home page, search engines, "keyword.URL", and the browser.newtab.url setting that controls what appears when you open a new tab.

Related KB article:

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

Hello from Claro search support team! Claro search is very easy to remove, please follow this link: http://info.claro-search.com/uninstall.html to get full and quick instructions. In case you need more, feel free to contact us at: Support@Claro-Search.com, we'll be glad to help you with any issue!