At wave ~36 I switched tabs to see what comes next but ******* FF made a new page with rs and closed my other tab... I logged in and was outside of cave
Sucks, but honestly it sounds like it was user error. IMO, you should use another window specifically for RS, and others for whatever. However, I use a Chromium App for RuneScape. No alternate tabs
^quite right. keep rs in a seperate window and all your other stuff in another with multiple tabs causes alot less confusion in general on your screen.