In case of browser emergency, follow these steps
To reset Internet Explorer, click the gear icon at the top right corner and select Internet Options. Go to the Advanced tab and click the Reset button.
In Firefox, click the Firefox button. Choose Help>>Troubleshooting Information. Click the Reset Firefox button at the top right corner.
In Google Chrome, click on the three-line icon in the upper right corner. Select Settings and then click on the "Show advanced settings" link at the bottom. Scroll down to the bottom and click "Reset browser settings." In the dialog box that appears, click Reset.
To reset Safari on a Mac, click Safari and choose the "Reset Safari..." option from the drop-down menu. A warning dialog will pop up, showing you the items that will be removed. Click Reset to complete the process.
You'll soon have your browser back and toolbar free.