I recently upgraded to the new version of Firefox only to find that it was not compatible with the Yahoo toolbar. This prevents the use of Options which results in a permanent Safe Search setting. Even the most innocuous searches are censored making Yahoo searches useless. I have tried Chrome, and although I am not as familiar with it, I cannot get the toolbar either. So, goodbye to any searches on Yahoo, and hello to permanent Google searches which, until now, was not my preferred way.