I removed the extra text in the example so that the table is the only thing. In Chrome I find I can see the gapcursor when clicking above / below the table.
In Firefox (v125) the gapcursor never shows when using my mouse to click above / below the table. The only way I can access the area is by using the keyboard to navigate.
Found when using the demo at https://prosemirror-tables.netlify.app/
I removed the extra text in the example so that the table is the only thing. In Chrome I find I can see the gapcursor when clicking above / below the table.
In Firefox (v125) the gapcursor never shows when using my mouse to click above / below the table. The only way I can access the area is by using the keyboard to navigate.