Toolbars and add-ons can sometimes negatively affect the display and performance of REsearch.

Example of a toolbar:

Click the menu button located on the upper right section of Firefox.
Click Add-ons from the dropdown

On the Add-ons Manager page:
Click Extensions located to the left
Locate the extensions you would like to remove – Click Disable or Remove, please use your best judgement

A browser restart may be required to complete the process.
Done!

In cases of more malicious programs sometimes there is no disable or remove button. These will need to be dealt with a different process. Please contact tech support or your computer professional.