How to find browser logging in Firefox
Step-by-step guide
Press F12 (or, alternatively, click the settings button at the top right of the Firefox > click Developer > click Web Console)
the developer toolbox (typically, at the bottom of the screen) would appearWith the Developer Toolbox around, browse to your JIRA
With the Developer Toolbox around, reproduce the problem
In the developer toolbox, go to the Console tab
Select the logging by right clicking any item in the Console > Select all
Copy the selected text to the clipboard
Paste to the support case
, multiple selections available, Use left or right arrow keys to navigate selected items