When I log on there is a foxfire mobile browser download ad. I can't use it and can't find any way to get rid of it. Also, I have tried multiple times to change my home page using the instructions in your help video and it doesn't work.
On which page is this?
Is that one of the snippets on the about:home page?
Can you attach a screenshot?
Use a compressed image type like PNG or JPG to save the screenshot.