Browser cache gets deleted after switching window managers

I use 2 window managers, mainly i3 and Ubuntu gnome. But when I switch from i3 to ubuntu or vice versa, all my browser cache gets deleted. For example i switched from Ubuntu gnome where I was signed in on outlook. After switching to i3 and opening my browser and going to www.outlook.com it asked me to sign in again. Please, let me know how to fix this.

Thanks in advance!