Your Firefox reported itself as version 16.0. Could you try the fix in the first section of this article: [[Websites say that Firefox is outdated or incompatible even though it's the latest version]]. Firefox 30 switched more plugins from "Always Activate" to "Ask to Activate". You may need to switch your Yahoo-related plugins back to "Always Activate" if the toolbar needs them. You can open the Add-ons page using either: * Ctrl+Shift+a * "3-bar" menu button (or Tools menu) > Add-ons In the left column, click Plugins. I'm not sure which plugins are the Yahoo ones, but presumably you can determine that from their names and descriptions. To test, try opening a new window (Ctrl+n) or new private window (Ctrl+Shift+p). Any improvement?