Recently (within the last two weeks) I've noticed that my mouse cursor will randomly jump to the upper corner of my screen while viewing a page within Firefox. From my observation it's only happening within Firefox, and the only variable I can think of is that I started using containers to visually differentiate my tabs. I've since tried to revert back, but the problem persists.

I'm running a Surface Book (Gen 1) with dock and multiple monitors. If there's any additional information needed to better diagnose the problem I'm happy to supply it if it means finding a resolution.