Issue Summary

In the Confluence Cloud editor, when using the Code Snippet macro in the Firefox browser, when you add or remove text, the line break is removed. This issue does not occur in the Chrome browser.

Steps to Reproduce

1. Open Confluence Cloud in Firefox.
2. Navigate to a page and enter the editing mode.
3. Insert a Code Snippet macro into the page.
4. Type multiple lines of code within the macro.
5. Click next to a text to edit the code, remove or add

Expected Results

The code should be able to be edited without causing the line break to be removed

Actual Results

The code edited removes the line break, so any code added to the line belo is added to the line of code we are editing.

Workaround

Use the Chrome browser to edit pages with the Code Snippet macro, as this issue does not occur in Chrome.