It’s inspired by the much more powerful Markdown Here http://markdown-here.com/ extension, that converts Markdown to HTML (I use it for Gmail).
This extension adds an entry to your right-click menu, called JIRA Formatting that expands further in 2 entries:
– MD to JIRA
– JIRA to MD
When you right click on an issue page on JIRA, and select one of the 2 functionalities, the extension will replace the content with the equivalent markup.
The addon has been tested on the following domains, but you can specify where to enable it via its options: