Hi karmjack-

Tab preview is an Add-on that is installed for Firefox. You can manage your add-ons by going to Firefox> Tools > Add-ons. Look through what you have installed, and disable or remove any add-on that you no longer want. That should take care of the problem.

You can try to set the Boolean pref nglayout.enable_drag_images to false on the about:config page.

To open the about:config page, type about:config in the location (address) bar and press the "Enter" key, just like you type the url of a website to open a website.
If you see a warning then you can confirm that you want to access that page.

• Use the Filter bar at to top of the about:config page to locate a preference more easily.
• Preferences that have been modified show as bold (user set).
• Preferences can be reset to the default via the right-click context menu if they are user set
• Preferences can be changed via the right-click context menu: Modify (String or Integer) or Toggle (Boolean)

Tried both of these fixes, neither one works.

Try disabling tab preview display in FVD suite addon options.