Rated 5 out of 5 stars

It's All Text is one of the 2 or 3 most important extensions for a programmer's web browser. If you edit any plain text, Markdown text, or any other kind of formatted text or program source, you should use It's All Text and a serious editor like GVim or your preferred alternative.

It's All Text works great with JIRA, GitLab, and other web tools that involve text editing and formatting.