Mozilla Firefox SHIFT ENTER breaks table alignment

When pressing ENTER on the first column, the table will be expanded as expected in edit mode.

On the other hand, when pressing SHIFT + ENTER on the first column, the table seems like it is broken in edit mode. This scenario only happens when using Mozilla Firefox.

When saving and previewing the page, it seems the table is unaffected. However, it is troublesome and can be an eyesore for customers to use Confluence edit.

Workaround:

• Undo the previous move, and attempt SHIFT + ENTER table again works fine.