There is an extension for Chrome called RootsSearch, which can search for your ancestors from multiple websites as show below.
It is a very well-kept secret, but something you may want to add to your Chrome Browser.
Once the extension has been added to Chrome, click on the roots search icon on the top toolbar. A new search window will open as shown below:
Fill in the search boxes with the appropriate information as shown in the graphic above. Click on one of the available sites. In the example below FamilySearch was chosen. A new tab will then open and in this case shows a list of results for historical records that may be relevant to the information provided.
Go back to the Roots Search window, choose a different site and you may find even more results!
At present the extension is only available for Chrome, but the developers plan in the future add it to Firefox. For more information on RootsSearch, read the developer’s blog.
Good luck with finding more information about your ancestors!