Hey - I actually have an answer for this question. I ran into the issue today and support and I came up with a solution. This is for a windows 8 laptop with a touch screen...
Step 1: Uninstall your version of firefox
Step 2: Right click your desktop, select screen resolution, click "Make text/items larger or smaller" - select 100%
Step 3: Restart (you may be prompted to do so)
Step 4: Install this version of firefox: Firefox Extended Support Release for organizations | International versions: Get Firefox in your language
Step 5: Restart again.
You should be good to go!