Scroll or Highlight?

[BillTreloar]

In Firefox, vertical scrolling doesn't always work. Sometimes when I try to scroll, I find myself highlighting text instead of scrolling he window. Usually my intent is to scroll, but I have no idea how to do that when the Surface seems to want to just highlight text.

How do I switch between those two modes.

 

[bertopl]

I don't think it's a matter of modes but that sometimes happens to me when the trackpad doesn't properly recognize a two finger scroll. the trackpad can be finicky on these and sometimes interprets a single click and drag which would highlight text on the page.