Not able to copy table from a page layout section to another section in Firefox

Description

When users tried to copy a table from a page layout section to another page layout section, the cell border will be removed and only paste the content of the table. This issue only happen in firefox browser

Steps to reproduce

1. Open firefox browser
2. Access confluence
3. Create a page
4. Add page layout with 2 column section
5. Add a table in one of the section
6. Highlight the table and copy it
7. Past the table to another section

Expected Result

Actual Result

Workaround

Use another browser such as chrome or IE11.