Can't copy table header details in Firefox version 41.0.2 (released Oct. 15,2015)

Summary

Users are not able to copy table header details in Firefox version 41.0.2. The same action can be done in other browser so this may be related to the recent release.

Environment

• Firefox latest version 41.0.2

Steps to Reproduce

1. Log in to Confluence and go to a page
2. Click 'Edit'
3. Create a table and add some header information as well as some content in the table
4. Save the page.
5. Notice you are not able to copy (highlight) header information if using Firefox but you can do it using Chrome or other browsers

Expected Results

All table content including the header information can be copied.

Actual Results

The header information cannot be copied.

Notes

This may be a change in the new browser update.

Workaround

Click edit on the page and copy from the editor directly.