This BBCode Table generator extension has been approved by Firefox. You can install it by following this page:

https://addons.mozilla.org/en-US/firefox/addon/bbcode-table-generator/

FYI, this extension still uses the old website format and does not support cell-by-cell input, as I'm using that version, not the current web version. Don't forget to provide feedback on this extension. If you find any bugs, please report in this thread.

Thank you for your support.