To see your tabs on the right side of the screen, you may need to activate the “Split Screen” mode, following these instructions:
1-Log in
2-Click on “Account”
3-Click on “Settings”
4-Look for the option “Split Screen” and activate it.
Take into account that if this does not solve the problem, you may have to check the zoom in your browser and set it to 100% or less; otherwise, you will not be able to see the split-screen mode.